Answer:
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