Question

Length of the shadow of a 15 meter high pole is 5.3 meters at 70'clock in the moming Then, what is the angle of elevation of the Sun rays with the ground at the time ok
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unthinking​

Answer 1

Answer:

Step-by-step explanation:

Length of pole is XY=15 m

Shadow of pole is =YZ=5  

3

​

 

angle of elevation of sun with ground is ϕ as shown in figure.

Here in a right angled triangle,

tan(90  

∘

−ϕ)=  

XY

YZ

​

=  

15

5  

3

​

 

​

=  

3

​

 

1

​

 

⇒tan(90  

∘

−ϕ)=  

3

​

 

1

​

 

⇒90  

∘

−ϕ=60  

∘

 

⇒ϕ=30  

∘

 

Elevation is 30  

∘