Trigonometryhard · Past Paper
If a pole of height h is at the center of a square of side 'a', and θ is elevation of its top from a corner, then:
Atan θ = 2h / (a√2)
Btan θ = h / a
Ctan θ = h√2 / a
Dtan θ = h / (a√2)
✓ Correct Answer: A — tan θ = 2h / (a√2)
Distance from center to corner is (a√2)/2. tan θ = h / (a√2/2) = 2h / (a√2).
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