Question

Find the value of x in the triangle shown below

Answer 1

x = 12

Explanation:

15 is the hypotenuse, and 9 is one of the side lengths. So:

`x = √(15^2-9^2) = √(144)=12`

Answer 2

x^2=15^2-9^2

x^2=225-81

x^2=144

therefore x=12