Question

A man is trying to zombie-proof his house. He wants to cut a length of wood that will brace a door against a wall. The wall is 4 feet away from the door, and he wants the brace to rest 2 feet up the door. About how long should he cut the brace?

Answer 1

Answer:

About 4.5 feet

Step-by-step explanation:

using Pythagorean Theorem : a^2 + b^2 = c^2

(2)^2 + (4)^2 = c^2

4 + 16 = c^2

20 = c^2

Take the the square root of 20 using a calculator and you get 4.47.

Round that up to 4.5