Question

A 10-foot ramp must make an angle of 30° with the ground if it is to reach a certain window. What angle must a 15-foot ramp make with the ground to reach the same window? 16.5° 19.5° 48.6° 70.5°

Answer 1

To find the height of the window:

 

Sin 30 = h/10

 

h = 10Sin 30 = 5 ft

 

 

To find angle ∅

 

Sin ∅ = 5/15 = 1/3

 

   ∅ = 19.5

 

 

The 15ft ramp will have to make an angle of 19.5 degrees with the ground

Answer 2

Answer:

Step-by-step explanation:

To find the height of the window:

Sin 30 = h/10

h = 10Sin 30 = 5 ft

To find angle ∅

Sin ∅ = 5/15 = 1/3

∅ = 19.5

The 15ft ramp will have to make an angle of 19.5

degrees with the ground