Question

Find the angle of elevation of the sun (sun’s altitude) when the length of the shadow of a vertical pole is equal to its height.

Answer 1

The angle of elevation of the sun

(sun’s altitude) :

• Given that the length of the shadow of a vertical pole is equal to its height.

• Let suppose length of shadow of a vertical pole = x m and its height is equal to h m

• Then we are given x = h

• Ratio of h/x = 1

• And we know that tan theta = 1, when theta = 45°

• Therefore angle of elevation will be 45°

Answer 2

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