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Pythagoras Theorem

In an equilat...

Question

In an equilateral triangle ABC if AD ⊥ BC, then

(a) 5AB² = 4AD²
(b) 3AB² = 4AD²
(c) 4AB² = 3AD²
(d) 2AB² = 3AD²

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Solution

∆ABC is an equilateral triangle and .

In ∆ABD, applying Pythagoras theorem, we get

We got the result as .

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

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

Q. In an equilateral triangle ABC, if AD ⊥ BC, then which of the following is true?

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

Q. In an equilateral triangle ABC, AD is parpendicular to BC . Prove that 3AB² = 4AD².

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Pythagoras Theorem

Standard VII Mathematics

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