Question

Looking for right triangle side a is 1 inch long,and side b is 2 inches long. What is the length of side c?

Answer 1

`√(5)`

Explanation:

`a^(2) + b^(2) = c^(2)`

In this situation a = 1, b = 2

`1^(2) + 2^(2) = c^(2)`

1 + 4 =
`c^(2)`

5 =
`c^(2)`

c =
`√(5)`

This is an important mathematical theorem to know. It's called the Pythagorean Theorem.