Homework Help: Math (Re-post)

Posted by Lynn on Wednesday, July 21, 2010 at 7:26pm.

A customer wants to make a tee-pee in his backyard for his children. He plans to use lengths of PVC plumbing pipe for the supports on the tee-pee, and he wants the teepee to be 12 feet across and 8 feet tall. The customer needs to figure out the length of the sides of the teepee so he can figure out how much plumbing he will need.

We know the base of the teepee/triangle is 12 feet long. How many feet of PVC pipe would the customer need for just the one side of the tee-pee?

I came to the answer 10 feet of PVC pipe when I checked my original answer, by drawing a tee-pee with these measurements. What I would like to know is how do I solve this problem mathematically? (so that I do not have to draw a visual)
No one has answered this question yet.

Math (Re-post) - bobpursley, Wednesday, July 21, 2010 at 7:28pm
Use the theorem of Pythagoras

length^2=6^2+8^2
Math (Re-post) - Lynn, Wednesday, July 21, 2010 at 7:34pm
Thank you, I think. I still do not understand could you explain it to me? My professor still has not gotten back to me, yet.
Math (Re-post) - Reiny, Wednesday, July 21, 2010 at 9:14pm
http://www.jiskha.com/display.cgi?id=1279736856
Math (Re-post) - Ms. Sue, Wednesday, July 21, 2010 at 9:22pm
The Theorem of Pythagoras states that you can find the hyptonuse of a right triangle by using this formula.

a^2 + b^2 = c^2

Your triangle's base is 6 feet. Its height is 8 feet. You want to find c (the hypotenuse).

(6 * 6) + (8 * 8) = c^2
36 + 64 = c^2
100 = c^2
10 = c

Your answer is right.
Math (Re-post) - Anonymous, Thursday, July 22, 2010 at 12:23pm
You all were a great help, thank you!!!
Math (Re-post) - Ms. Sue, Thursday, July 22, 2010 at 4:57pm
You're welcome.

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