Q.

The height of the tower vertically at the orthocenter of the triangle (of sides a, b, c) and subtending ∠A at A is

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a

a

b

b

c

c

d

a+b+c3

answer is A.

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Detailed Solution

If H is the orthocenter and h is the height of the tower thentanA=hAH and AH=2RcosA∴  h2RcosA=tanA        ⇒   h=2RsinA=a
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