Question
In ΔABC, ∠BAC = 90° and AD ⊥ BC. If BD = 3 cm and CD = 4 cm, then length of AD is :
Answer: Option A
We know that,
AD2 = CD × BD
AD2 = 4 × 3
AD2 = 12
AD = $$2\sqrt 3 $$ cm
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We know that,
AD2 = CD × BD
AD2 = 4 × 3
AD2 = 12
AD = $$2\sqrt 3 $$ cm
Was this answer helpful ?
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