যদি AB = BC = CA = 10 সে.মি. এবং AD ⊥ BC হয় তবে, AD = কত সে.মি.?

A 5√3

B 5√5

C 75

D 125

Solution

Correct Answer: Option A



∴ AD = √(102 - 52)
= √(100 - 25)
= √75
= 5√3

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