Question

32. The shadow of a vertical pole is 73 times of its height, find the Sun's altitude. Also find how many
times of vertical pole is its shadow, when Sun's altitude becomes half?​

Answer 1

Answer:

If the length of shadow of a vertical pole is equal to its height, then the angle of elevation of the sun is 45^o .

Answer 2

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Let the height of the tower be h

∴height of the shadow=

3

h

In a △ABC,

tan∠ACB= 3

h

h

⇒tan∠ACB=

3

1

∴∠ACB=60

∘

Therefore, angle of elevation is 30

∘

.