ΔABC be a right-angled triangle where ∠A = 90° and AD ⊥ BC. If a – McqOptions

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1.	ΔABC be a right-angled triangle where ∠A = 90° and AD ⊥ BC. If ar (ΔABC) = 40 cm2, ar (ΔACD) = 10 cm2 and AC = 9 cm, then the length of BC is
A.	2 cm
B.	8 cm
C.	cm
D.	cm
Answer» C. cm

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