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Pythagoras Theorem

In an equilat...

Question

In an equilateral triangle ABC, If AD ⊥ BC, then

(a) 2AB² = 3AD²
(b) 4AB² = 3AD²
(c) 3AB² = 4AD²
(d) 3AB² = 2AD²

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Solution

Given: In an equilateral ΔABC,

Applying Pythagoras theorem,

In ΔABD,

We got the result as .

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Pythagoras Theorem

Standard VII Mathematics

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