Question

PLEASE HELP ME
What is the value of x in this triangle?

Answer 1

x = 39

Explanation:

We need to solve for the interior angle measure. The sum of a triangle's interior angle measures are 180, so we just have to create an equation and solve for x.

`x+102+39=180`

Add like terms

`x+141=180`

Subtract 141 on both sides

`x=39`

To check our work, we can add the angle measures together to see if they add up to 180.

`39+102+39 = 180`