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Angle Equations MCC7.G.5 Use facts about supplementary, complementary, vertical, and adjacent angles in a multi‐step problem to write and solve simple equations for an unknown angle in a figure. For each problem, write an equation to find the value of x then solve it. 1. 2. 3. 4. 5. 6. 7. What is the measure of the angle given by the opening of the scissors? 8. A skateboard ramp forms a 42° angle as shown. Find the value of angle A. <A = 9. When a basketball hits a hard, level surface, it bounces off at the same angle at which it hits. Use the figure to find the angle at which the ball hit the floor. 10. <A and <B are complementary angles. The measure of <B is (4x)°, and the measure of <A is 50°. What is the value of x? 11. Angles E and F are supplementary. If m<E = x – 10 and m<F = x + 2, find the measure of each angle.