Question

What is the value of x?

Answer 1

30°

Explanation:

A triangle always adds up to 180° so since one side of the triangle is already 90°, that means the other two sides add up to be 90° as well.

`x + 2x = 90 \\ 3x = 90 \\ (3x)/(3) = (90)/(3) \\ x = 30`