# Find The Length of AB ? If

G is the centroid of DABC. The medians AD and BE intersect at right angles. If the lengths of AD and BE are 9 cm and 12 cm respectively; then the length of AB (in cm) is:

1. 9.5
2. 10
3. 10.5
4. 11

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Explanation:-
According to the question,
In the diagram-

AB = (62 + 82)1/2
= (36 + 64)1/2
AB = (100)1/2
AB = 10 cm

Then, the length of AB is 10 cm.

Hence, the answer is (2) 10 cm.

Anurag Mishra Professor Answered on 22nd August 2015.

Dear sir,