Question

The measure of ∠AOC is 90°. Find the value of x.

A) 11
B) 10
C) 30
D) 50

Answer 1

The value of x is 90. The correct answer is D) 50.

Explanation:

To find the value of x, you need to use the fact that ∠AOC is a right angle, which means it measures 90°1. You also need to use the fact that the sum of the angles in a triangle is 180°2. Therefore, you can write the following equation:

x + 40 + 50 = 180

Solving for x, you get:

x = 180 - 90 x = 90