anonymous
  • anonymous
have a few questions in geometry and no this is not for a quiz but it is timed... The section is areas of triangles, parallelograms and trapezoids once I open the questions I have to finish it
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
shubhamsrg
  • shubhamsrg
Really? Your course book might help you! ^_^
anonymous
  • anonymous
Dang never thought of that! to bad I dont have one!
anonymous
  • anonymous
I do cyber school? doesnt come with a book

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shubhamsrg
  • shubhamsrg
MAke google your book.
anonymous
  • anonymous
what cyber school.
anonymous
  • anonymous
one through my public school and @shubhamsrg that really doesnt work out to well
anonymous
  • anonymous
Well what exactly do you need help with?
anonymous
  • anonymous
areas of triangles, parallelograms and trapezoids
anonymous
  • anonymous
Thats a lot of material, they're all just formulas, you just need to google them. I dont understand what you're looking for?
anonymous
  • anonymous
No like yeah its just formulas but apparently i am doing them wrong and thats what i need help with
anonymous
  • anonymous
Well lets start with triangles then. a triangle's formula is (b)(h)(1/2) do you understand that?
anonymous
  • anonymous
Well I can pull up the questions so that way you can see exactly what im talking about but like I said once i open it i have to finish it so if you think you can help I will
anonymous
  • anonymous
I'm working on some of my own stuff so lets not do that.
anonymous
  • anonymous
here, try and answer this one. |dw:1360570376617:dw|
anonymous
  • anonymous
thats not really what the questions are asking..I really just want to learn from the questions asked....no offense and I know that you put it up to teach it but honestly I have been sitting here for a few hours cause i need help with my question you know? i just keep re-posting this not bumping but totally re-posting it....
anonymous
  • anonymous
Thats because its not a question, you're asking me to explain the whole entire world of finding areas. thats a lot of different situations. I need something more specific that your'e struggling with.
anonymous
  • anonymous
Not trying to sound rude trust me not the intention and I appreciate the help with the one you posted but I just want to get mine done cause im frustrated with them and no there as specific question but I cant give it to you without opening it and then I have to do it so if I do and you say oh idk that one and I cant answer it correctly obviously i get it wrong
anonymous
  • anonymous
if its not a quiz then what does it matter? Its to learn it and understand it. I understand the situation yoou're in, trust me i've been there dozens of times, but i cant help if i don tknow whats wrong. So, you can open your work folder and I can try to help but I'm going to explain it to understand it, not to get it done quickly.
anonymous
  • anonymous
cause it still counts as a grade , thats why it matters and no I literally click a link and it takes you to the question and it gets submitted and so on and so on but I cant just go grab the question and exit and im not in a rush to finish it once its started I just want to start it I dont really care how long it takes in the process of completing it
anonymous
  • anonymous
Well then lets go! :) I thought since it was timed it would be a bit of a race
anonymous
  • anonymous
oh no haha sorry I should of explained that better
anonymous
  • anonymous
Okay give me one sec to open
anonymous
  • anonymous
Find the area. a.238.5 dm2 b.257.5 dm2 c.157.5 dm2 d.315 dm2
1 Attachment
anonymous
  • anonymous
I may be totally wrong but would you add 8.5 to 26.9 then times that by 9?
anonymous
  • anonymous
Okay well the formula to get the answer is H (sum of bases/2)
anonymous
  • anonymous
doe that mean i can or cant do what i posted ^^
anonymous
  • anonymous
this is what the equation will look like
anonymous
  • anonymous
Oh so add them together then divide by 2
anonymous
  • anonymous
\[9(\frac{ 8.5+26.9 }{ 2})\]
anonymous
  • anonymous
yup.
anonymous
  • anonymous
so 157.5?
anonymous
  • anonymous
if thats what the calculator says, then yes. I dont have a calc ready. once you understand and know the forumlas the equations are uaually easy.
anonymous
  • anonymous
Okay, is it okay if I post the next one here?
anonymous
  • anonymous
sure.
anonymous
  • anonymous
okay one sec
anonymous
  • anonymous
Find the area. a.238.5 dm2 b.257.5 dm2 c.157.5 dm2 d.315 dm2
1 Attachment
anonymous
  • anonymous
Okay its a triangle right?
anonymous
  • anonymous
Whats the formula for the finding the area of a triangle?
anonymous
  • anonymous
yes and 1/2(bh)
anonymous
  • anonymous
right so just plug in your numbers
anonymous
  • anonymous
so 9.49
anonymous
  • anonymous
right, then you need to convert to decimeters
anonymous
  • anonymous
A trapezoid has an area of 80.75 sq. in., and its two bases are 7 and 12 inches long. Find the height of the trapezoid. a.8.5 in. b.7 in. c.8.75 in. d.9.2 in. what about this?
anonymous
  • anonymous
Okay so we just use our area formula for it and rearange it. so if our formula was h(bases/2)=A and we dont know the h, we just plug all the other numbers in a solve like an albegra problem.
anonymous
  • anonymous
but it says 2 bases so which one do i use
anonymous
  • anonymous
both. Remember you need to add your bases together.
anonymous
  • anonymous
okay so its 1/2 x 19 + ?
anonymous
  • anonymous
yes, its (x)(1/2)(19)= 80.75 sq in
anonymous
  • anonymous
okay... ughh
anonymous
  • anonymous
whats wrong?
anonymous
  • anonymous
i have no clue what to do
anonymous
  • anonymous
:) okay well work it like an algebra problem, what needs to be by itself on one side of the equation?
anonymous
  • anonymous
okay, so do we work with the 19 first?
anonymous
  • anonymous
|dw:1360572812562:dw| start by moving X to one side all by itself.
anonymous
  • anonymous
80.75/x?
anonymous
  • anonymous
@natnatwebb
anonymous
  • anonymous
I'm doing the math. by hand okay? :) we have 9.5x=80.75 now tell me whats the next step?
anonymous
  • anonymous
okay! subtract 9.5 from 80.75
anonymous
  • anonymous
nope! Try again
anonymous
  • anonymous
Divide.
anonymous
  • anonymous
yeah thats what I meant haha my bad...blonde moment
anonymous
  • anonymous
:) its okay.
anonymous
  • anonymous
okay so then its x=80.75/9.5
anonymous
  • anonymous
yes.
anonymous
  • anonymous
and that 8.5
anonymous
  • anonymous
bingo
anonymous
  • anonymous
For an arts and crafts project, a student cut a triangle out of a rectangular piece of paper. If the triangle has a base of 6 inches and a height of 8 inches, and the rectangle has a length of 11 inches and a width of 12 inches, what is the area of the leftover paper after the triangle is cut out? a.108 in2 b.150 in2 c.174 in2 d.24 in2 almost done
anonymous
  • anonymous
okay well we have three equations here. The area of the rectangle, the area of the triangle and then the area of the triangle subtracted from the area of a rectangle. Understand?
anonymous
  • anonymous
ehh i think
anonymous
  • anonymous
Okay! Go give it a whirl and lemme know how it goes :)
anonymous
  • anonymous
so i am going to come back to that one..can i post another?
anonymous
  • anonymous
well lets work through it, are you stuck?
anonymous
  • anonymous
well if i can get the next few done i can take my time and work on it without having you wait
anonymous
  • anonymous
Its okay, I'm doing my own homeowrk too so I'm not just sitting here twirling my thumbs do what you like.
anonymous
  • anonymous
okay we will go back to it... Find the area of the trapezoid with vertices at the given points. (0, 2), (3, 2), (5, 0), (–1, 0) a. 11 units2 b. 12 units2 c. 9 units2 d. 7 units2
anonymous
  • anonymous
okay, the best way to do these is to actually graph them. Use a graphing calcuator or just do a quick sketch so you can see it. Then you just could your bases and plug in your equation
anonymous
  • anonymous
I dont have a graphing calculator on me right now or paper
anonymous
  • anonymous
|dw:1360574877604:dw|
anonymous
  • anonymous
okay
anonymous
  • anonymous
okay, well the time for the questions ran out...i will have to give it another go later, thank you though for all the help
anonymous
  • anonymous
You're welcome, just remember that you have all you need in your area forumlas, you just may need to rearrange them and solve for diffferent aspects of the formula :)
anonymous
  • anonymous
okay, thanks!

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