ok the question i need help with is:two vertical poles are 16 feet apart. what is the minimum number of feet in length of a rope that connects the top pf the 50 foot peole to the top of the 20 foot pole

- anonymous

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- anonymous

One side of the triangle is 16ft so the base is 16ft. The other side is the difference between 50ft and 20ft. Let one equal a, the other b, and solve for c.

- anonymous

so can u type how the equation would be for me plz:)

- anonymous

are you sure you just want the answer?

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- anonymous

both work and anwer

- anonymous

i just dont get what he is saying like equation wise

- anonymous

ok, i'll try to explain it too - this might help to have to two ways... you know the hypotenuse is 'the long bit' ?

- amistre64

usually this question has a point on the ground between the poles that acts like an anchor....

- anonymous

ook

- amistre64

like this

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- anonymous

ya

- amistre64

is that the answer your looking for? or simply the distance between the tops of the poles?

- anonymous

I think the question is just asking for the distance between the top of the 50 ft pole to the top of the 20ft pole. I don't think the anchor situation has anything to do with it.

- anonymous

well u have to read the question

- anonymous

its the tops

- amistre64

what is the minimum number of feet is an optimization question to me...so I am lead to think that there is something missing from the question

- anonymous

its asking what is the feet in the length of a rope tht connects the top

- anonymous

It's a simple geometry problem incorporating pythag.

- amistre64

otherwise its asking for the caternary between them...

- amistre64

but go ahead :)

- anonymous

why dont u reread the question above

- amistre64

I did, but hey, if your sure your right then by all means, go with it :)

- anonymous

stop making it more complex than it is amistre :P

- anonymous

Ok a=16 b=30 c=?

- anonymous

well i dont even get anythihng like at all

- anonymous

16ft is the distance between the two poles so the base of a triangle. 30ft is the difference in height from the top of the 20ft pole to the top of the 50ft pole.

- anonymous

so whats the overall anwer?? is it that i input the numbers and c is the anwer

- anonymous

Yes because c represents a hypotenuse which would be the diagonal line from the top of the 50ft pole to the top of the 20ft pole.

- anonymous

what did u get as an awner

- anonymous

34ft

- anonymous

same here ok ready for the last one

- anonymous

Yep.

- anonymous

If the sides of a rectangular field shown are 10 meters and 30 meters , how many meters are saved in travelling from A to B by cutting across the digonal of the field instead of going around two of the sides? express anwer to the nearest hole number of meters

- anonymous

So the diagonal represents what here? I kind of mentioned it before...

- anonymous

ok so there is a rectangle right and its cuz in half the top of it is 30 and sidke is ten or a while 30 b

- anonymous

wait forget a and b but the rest is right

- anonymous

so b is one cornor of the rectangle( top left) and a is bottom right of rectangle there we goo

- anonymous

help

- anonymous

if you are putting it into shapes, a and b aren't points on the rectangle, they are the length of the side of the rectangle

- anonymous

Ok...so if you cut a rectangle in half diagonally, then you have a triangle. The diagonal of the rectangle is the hypotenuse, c. So a and b are the sides of the rectangle.

- anonymous

does that help?

- anonymous

nope

- anonymous

here is what the rectangle looks like

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- anonymous

wow, thats blurry

- anonymous

sorry

- anonymous

just wanted to give picture bout what im saying

- anonymous

oh yeah, that was good, but i couldn't read it sorry :) but i think i can figure out what it says

- anonymous

Ok so go back to the equation \[a^2+b^2=c^2\] a is any side of the triangle, and b is just the other side. C is the hypotenuse, which is the diagonal.

- anonymous

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- anonymous

so how would i imput those numbers would i have to cut them in half since it is only oone of the triangles??

- anonymous

Nope. They are looking for that diagonal length, which depends on the other two sides of the triangle. No need to cut anything in half. You see two triangles so just pretend one isn't there. A=10ft B=30ft c=?

- anonymous

what was ur anwer

- anonymous

What was your answer?

- anonymous

i got 32 rounded

- anonymous

Correct. :)

- anonymous

thanks going to bed bye peoples

- anonymous

No problem.

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