In a ΔABC, AB = BC = CA = 2a and AD ⊥ BC. Prove that

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asked Feb 13, 2018 in Mathematics by sforrest072 (157,439 points) 60 409 933

In a ΔABC, AB = BC = CA = 2a and AD ⊥ BC. Prove that

(i) AD = a√3

(ii) Area (ΔABC) = √3 a2

1 Answer

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answered Feb 13, 2018 by mdsamim (213,225 points) 5 10 15
selected Feb 13, 2018 by sforrest072
 
Best answer

(i) In ΔABD and ΔACD

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