Question

Brian wants to build a ramp that leads to a storeroom 5 meters above the ground. He wants the ramp to be 10 meters long. What should the angle of elevation of the ramp be? 15°

Answer 1

It should be 30 degrees

Answer 2

Angle of elevation of the ramp = 30°

Explanation:

Refer the figure.

We need to find angle ABC.

We have

`sin\angle ABC=(5)/(10)=0.5\\\\\angle ABC=30^0`

Angle of elevation of the ramp = 30°