i dont understand how to do this help please

Question

A 90-ft pole casts a shadow as shown in the figure.

(a) Express the angle of elevation θ of the sun as a function of the length s of the shadow.
θ =

(b) Find the angle θ of elevation of the sun when the shadow is 35 ft long. (Round your answer to one decimal place.)
θ = 2

 

Comments

Please provide the figure.

Answer 1

Step 1:

(a)

The angle of elevation is the angle between the horizontal and the line from the object to the observer's eye.

The height of the pole is 90 ft.

Let the length of the shadow be  ft.

Draw the diagram of the situation:

Angle of elevation is 

Step 2:

(b)

The length of the shadow is 35 ft.

From (a): Angle of elevation is

Angle of elevation is .

Solution:

(a) Angle of elevation is 

(b) Angle of elevation is .