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In angle ABC, D and E are the midpoint o...

In `angle ABC`, D and E are the midpoint of sides BC and AC, respectively AD and BE intersect at G at right angle. If AD= 18cm and BE = 12cm then the length of DC (in cm) is :
त्रिभुज ABC में, D और E भुजाओं BC और AC के मध्य बिंदु हैं, क्रमश AD और BE समकोण पर G पर प्रतिच्छेद करते ह। यदि AD = 18 सेमी और BE = 12 सेमी तो DC (सेमी में) की लंबाई है:

A

6

B

10

C

8

D

9

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