alleryA 30 m high tower casts a shadow 30 m long. The angle of elevation of the sun is
A30 degrees
B60 degrees
C45 degrees
D90 degrees
Answer & Solution
Correct answer: C. 45 degrees
1. tan(theta) = tower/shadow = 30/30 = 1.
2. theta = arctan(1) = 45 degrees.
3. Hence angle of elevation is 45 degrees.
_Source: syllabus Mathematics, Ch 9 "Some Applications of Trigonometry", §9.2_
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