Question

Two angles are vertical angles. One angle is labeled 2x. The other angle is labeled (x + 30). Find the value of x

Answer 1

2x=x+30
-x -x
x=30
Vertical angles are equal, so to find x, you must set the angle measures equal to each other

Answer 2

x = 30°

Explanation:

Vertical angles are equal. Vertical angles are congruent angles. Vertical angles share the same vertices . They share the same corner points.

Since the two angles are vertical angle that means they are equal.

The first angle = 2x

the second angle = x + 30

To find the value of x

2x = x + 30

collect like terms

2x - x = 30

x = 30°