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superraymond
 one year ago
Best ResponseYou've already chosen the best response.0can you help me first

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1dw:1364254756475:dw Find the area of ABCD.

Hoa
 one year ago
Best ResponseYou've already chosen the best response.0let CO is the height of the triangle, and let F is the point between A and O. redraw it. I guide you then

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Ok like this??dw:1364255189854:dw

Hoa
 one year ago
Best ResponseYou've already chosen the best response.0perfect, now, you have 2 regions. right? and you have formula to get the answer, try, the first region is parralelogram ADCF, the area formula is????

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1b*h = Area for rectangle and parallelogram

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2are you sure that BC = 8?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2it would make things a lot easier if BC = 8

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2i meant, BC = 6

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Yea:) @jim_thompson5910 It does!!

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Oh i know what ur saying... @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2anyways, we need CO, which will give us the height needed to find the area of the paralleogram but before we find CO, we need FB

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2that length is 32 dw:1364255489567:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2this length is 22 dw:1364255516091:dw so this remaining length here dw:1364255533268:dw must be 10

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2since 22+10 = 32

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Nvm i know what urr doing:)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2We now have this triangle dw:1364255559257:dw

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1And so u have to do the pythagoreum theorm thing...

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2it's not drawn to scale because this is actually a right triangle with hypotenuse of 10 so it really looks like this dw:1364255624494:dw

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1But u cant do tht, if it doesnt say in my HW...

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2if x was this length dw:1364255675546:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2then 10x must be this length here dw:1364255697460:dw

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Hold on there bro, let me see what ur doing, plz ... @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so what this means is that we can say x^2 + h^2 = 6^2 and h^2 + (10x)^2 = 8^2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2alright sorry

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1dw:1364255854635:dw I dont get what u did here... @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I broke up that length of 10 into two pieces

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2one piece is x units long the other is 10x units long

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2both add back up to 10 (x) + (10x) = x + 10x = 10

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1So y can t u just leave it as 10??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2because breaking up this length of 10 will help us find the height h

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2it's not the only way to find h, but it's probably one of the easier ways

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1dw:1364256139846:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yes you break up the triangle like that and that will help you find h

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1ok so now it makes sense...

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2this first triangle here dw:1364256244802:dw has legs of x and h, with hypotenuse 6, so a^2 + b^2 = c^2 x^2 + h^2 = 6^2 x^2 + h^2 = 36

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2this triangle here is a right triangle with leg1 = 10x leg2 = h hypotenuse = 8 which means a^2 + b^2 = c^2 (10x)^2 + h^2 = 8^2 (10x)^2 + h^2 = 64

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2with me so far?

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Kinda, i still dont get y u did 10  x ?? lol sry

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2well if you break up 10 into two pieces, then one piece is x units long the other must be 10x units long

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2example if x was say x = 2 inches, then the first piece would be 2 inches the remaining bit would be 10x = 102 = 8 inches

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Yea i get it but y can u just split it in half??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2they must add back up to 10, and they do x + (10x) 2 + (8) 10

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2because we do NOT know whether the length h cuts the side 10 in half or not

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2it could, but it could not (in this case, it doesn't) we just don't know

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so that's why we must go this route

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1ok... sry for tht, its just i need to know how to do this, thxss :) so wats next?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2no need for sorries, questions are good

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2ok we have these two equations x^2 + h^2 = 36 (10x)^2 + h^2 = 64

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2we can either use substitution or elimination to solve for x and h

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2let's do substitution

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1ok, i think there is a way simpler way... im pretty sure tht u can split tht in half, my teacher said tht we wouldn't need to use sub. or eli.

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Can we just assume, b/c it's a right angle??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2Start with equation 1 and isolate h^2 (not h, just h^2) x^2 + h^2 = 36 h^2 = 36  x^2  Now replace h^2 in equation 2 with 36  x^2 (since h^2 = 36  x^2 above) (10x)^2 + h^2 = 64 (10x)^2 + (36  x^2) = 64 Now FOIL out, expand and simplify (10x)^2 + (36  x^2) = 64 100  20x + x^2 + 36  x^2 = 64 100  20x + 36 = 64 136  20x = 64 20x = 64136 20x = 72 x = 72/(20) x = 18/5 x = 3.6

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2This is why I asked if BC was 8 or not If BC = 6, then you could split the 10 into two equal pieces

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1k let me get this down...

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1So how did u get these two equations?? (10x)^2 + h^2 = 64 x^2 + h^2 = 36

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2through the use of the pythagorean theorem

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2a^2 + b^2 = c^2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2it's explained a bit more above

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1where did u get 36 from?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2from squaring the 6

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1So is it sub or elim tht ur doing ? @jim_thompson5910

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1@jim_thompson5910 ??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I'm doing substitution

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I isolated h^2 in the first equation and then replaced the other h^2 in the second equation with 36  x^2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2notice how the h terms went away after that

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1kk i need to write this

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1Sry it took so long... but is this 3.6??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2btw I showed how it's x = 3.6 above lol but I'm glad you got that on your own

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1dw:1364258514592:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yep, that length you are pointing to is 3.6 units long

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so x^2 + h^2 = 6^2 x^2 + h^2 = 36 (3.6)^2 + h^2 = 36 12.96 + h^2 = 36 h^2 = 36  12.96 h^2 = 23.04 h = sqrt(23.04) h = 4.8

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2So the height is 4.8

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1So is tht for this one??

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1dw:1364258641203:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2no this one here dw:1364258674211:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2that's what we wanted we really don't need x to find the area we only needed x to find h

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1So, i thought u said that

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1dw:1364258753145:dw trhis length is 10  x ??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2but we found x, then used that to find h

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2we don't need to know what 10x is we just want h

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1So the last equation u put was to find 'h' right??

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1k hold on let me get tht down..

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I started with x^2 + h^2 = 36, plugged in x = 3.6, then solved for h

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1OK!! lol i get what we did, so whats next?? Do we just do 32 * 4.8??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2ok that's a lot of work to find h

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2like I said, it would be a lot easier if BC = 6

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2but it's still doable to find h even if BC wasn't 6

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1so was i right?? or is there a different way to do this?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2anyways, this is a trapezoid with base1 = 32 base2 = 22 height = 4.8

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so we can find the area using this formula A = h*(b1+b2)/2 where in this case h = 4.8 b1 = 32 b2 = 22

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2A = h*(b1+b2)/2 A = 4.8*(32+22)/2 A = 4.8*(54)/2 A = 4.8*27 A = 129.6

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1So thts it?? @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yep pretty much, unless you want to convert that into a fraction

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1No thank u, i perfer decimals:)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yeah decimals are more intuitive with area problems

LizzyLove<3
 one year ago
Best ResponseYou've already chosen the best response.1THANK THANK YOU SOOOOSOSOOOO MUCH:D:D:D:D: :):) UR THE BEST :D:D:D

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2lol thx and glad to be of help
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