Question

Find the value of x in the figure.

Answer 1

Since a triangle adds up to 180 degrees so you want to add 40 and 90 which is 130.
180 - 150 = 30
x = 30

Answer 2

50

Explanation:

A triangle has 180 degrees. Since the square shows a right angle, and we already have the 40 value, we just add 40+90, which is = to 130. We then subtract 130 from 180, getting 50.