A wheelchair ramp needs to reach a platform that is 1.5 meters high. If the ramp is designed to make an angle of 30° with the level ground, what is the length of the ramp?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 3 m.
Ramp height (AB) = 1.5 m
Length of the ramp = AC
sin30° = AB/AC = 1.5/AC
⇒ 1/2 = 1.5/AC
⇒ AC = 3 m