Question
At 9:30 a.m., the length of a poleās shadow is equal
to its height. What is the sunās altitude at this time?Solution
ATQ, The poleās height = h, and its shadow = h. In the right triangle formed: Opposite side = height of the pole (h). Adjacent side = shadow (h). Using the tangent function: Hence, the sunās altitude is 45Ā° .
Now, we Solve for Īø : 
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