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The angle of elevation of the sun, when the length of the shadow of a tree √3 times the height of the tree, is:

30°
45°
60°
90°

Correct Answer: 30°

Explanation:

Let AB be the tree and AC be its shadow.

Let ∠ACB = Θ.

Then,	AC	=	√3 ⟹ cot Θ = √3
	AB

∴ Θ = 30°.

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