Question

1. Find the length of the missing side. Round your answer to the nearest

tenth if needed. *
x
12
9

Answer 1

x = 15

Explanation:

Since the triangle is a right angled triangle we can use Pythagoras theorem to find the missing side x

Using Pythagoras theorem we have

a² = b² + c²

where

a is the hypotenuse

b and c are the other two sides

So we have

`{x}^(2) = {12}^(2) + {9}^(2) \\ {x} = \sqrt{ {12}^(2) + {9}^(2) } \\ x = √(144 + 81) \\ x = √(225)`

We have the final answer as

x = 15

Hope this helps you