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Each side of an equilateral triangle sub...

Each side of an equilateral triangle subtends an angle of `60^(@)` at the top of a tower h m high located at the centre of the triangle. If a is the length of each side of the triangle, then

A

`2 a^2 = h^2`

B

`2h^2 = a^2`

C

`3a^2 =2h^2`

D

`2h^2 =3a^2`

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The correct Answer is:
D
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