A living room is 20 feet long, 50 feet wide and 12 feet high. how much paint do you need to cover the walls? a. 2680ft ^2
b. 3680ft ^2
c. 4680ft ^2
d. 1680ft ^2

d

Step-by-step explanation:

By drawing a diagonal in a square you are dividing the square into two congruent isosceles right triangles. Using Pythagorean Theorem we can find the length of the diagonal.

a squared + b squared = c squared
a and b represent the sides of the triangle (aka the length of a side of the square), and c represents the hypotenuse (aka the diagonal).
9 squared + 9 squared = c squared
81 + 81 = c squared
162 = c squared
take the square root of both sides
81= x