Question

What is the length of the unknown leg of the right​ triangle?

The length of the unknown leg of the right triangle

​(Round to one decimal place as​ needed.)

Answer 1

1. Use the Pythagorean Theorem since this is a right triangle:

a^2 + b^2 = c^2

3^2 + b^2 = 4^2

b^2 = 4^2 - 3^2

b = √ 7

b = 3

answer : 3