Question

4. A ramp makes an angle of 9° with the ground. What is the measure of the missing angle in the ramp?

Answer 1

81

Explanation:

Assuming the ramp is against a wall or building at a 90 degree angle, then the 3 angles formed by the triangle within the ramp and wall are 9 +90 + x = 180 so 99 + x = 180 so x=81