If S denotes the area of the curved surface of a right circular cone of height h and semi vertical angle ∝ then S equals
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Q:
If S denotes the area of the curved surface of a right circular cone of height h and semi vertical angle ∝ then S equals
- 1$$πh^2 tan^2∝ $$false
- 2$${1\over 3}πh^2tan^2∝$$false
- 3$$πh^2sec∝tan∝$$true
- 4$${1\over 3}πh^2sec∝tan∝$$false
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