Question

52°
o x = 98
o x = 112
o x = 128
o x = 148

Explanation:

Step1: Recall angle - sum property

The sum of an angle and its adjacent exterior angle is 180°.

Step2: Set up the equation

We know that 52°+x = 180°.

Step3: Solve for x

x=180 - 52.
x = 128.

Answer:

x = 128