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 evelation of the ramp be?
a- 15
b- 30
c- 45
d- 60

30°

Step-by-step explanation:

Given :

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.

To Find : What should the angle of elevation of the ramp be?

Solution:

Refer the attached figure

Height of ramp i.e.AB = 5 m

Length of Ramp i.e.AC = 10 m

We are supposed to find the angle of elevation i.e. ∠ACB

We will use trigonometric ratio

Hence the angle of elevation of ramp is 30°

the answer is a

step-by-step explanation: