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Length of shadow of a 15mis 1853m Then find the angle of elevation |
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Answer» Answer: Length of pole is XY=15 m Shadow of pole is =YZ=5
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 ∘ |
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