Question

Find the value of x in each triangle

Answer 1

Explanation:

The sum of a triangle’s angles is always 180 degrees so

x+x+25=180

2x+25=180

2x=155

x=77.5 degrees

Answer 2

Both x’s are 77.5 because a triangle must add up to 180. If you know 25 you can subtract from 180 and divide by 2.