Answer:
See below
Step-by-step explanation:
We can use the Pythagorean Theorem to find the missing side length (hypotenuse). The pythagorean theorem states a^2+b^2=c^2. We have the values of a (8) and b (20) given. Let's solve this.
We get 8^2+20^2=c^2. We get 64+400=c^2. c^2=464, so c is equal to 21.54 inches.
Hope this helps!
