Question

A farmer is estimating the surface area of his barn to find how much paint he needs to buy. One part of the barn is triangular as shown.
part a. The darkened sides in the figure are the edges of the roof. This trim will be painted white. Find the length of each of these two sides of the triangle. Explain how you found the answer.

part b. The triangular surface will be painted red. Find the area of the triangle. Explain how you found the answer

Djmonster456 please don't answer this question. It would be much appreciated.

Answer 1

We know the triangle is an isosceles triangle. So, we use the Pythagorean Theorem. 

a^2+b^2=c^2

The c would be 22, because it's the longest edge. Now find a or b. They are the same, that is how you find the two sides of the triangle for part A.

To find the area of the triangle, the forumla is a=hb/2

Plug in the numbers for that formula and the answer would be found for part B.

I hope I helped.