Using PVC Pipes for building a tee-pee and I nees to know, how to figure out how long the pieces should be for 12 feet across and 8 feet tall to build this tee-pee in my yard?
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