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Question

In ABC, D is the mid-point of BC and
G is the centroid of the triangle If GD=4 cm then the length of AD is-

A
8 cm
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B
6 cm
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C
10 cm
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D
None of these
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Solution

The correct option is B 10 cm
Centroid divides the median in the ratio 2 : 1
AG : GD = 2 : 1
So AG = 2×GD
= 2×4= 8 cm
AD = AG+GD
= 8 + 2 = 10 cm
1069029_404346_ans_4fe030d7a81a4f108aa30af4195101e7.bmp

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