Question

fill in the blank 4 points. given the following picture, x = type your answer...

Explanation:

Step1: Identify vertical - angle property

Vertical angles are equal. The two angles in the picture are vertical angles. So we set up the equation $4x=84$.

Step2: Solve for x

Divide both sides of the equation $4x = 84$ by 4. We get $x=\frac{84}{4}=21$.

Answer:

21