In ΔABC, D and E are the midpoints of sides BC and AC, respectively, AD and BE intersect at G at right angle. If AD = 18 cm and BE = 12 cm, then the length of DC (in cm) is:
A. 10
B. 6
C. 9
D. 8
Answer: Option A
Solution (By Examveda Team)
AD = 18
BE = 12
BO = 8
DG = 6
ΔDGB
82 + 62 = BD2
BD = 10
BD = CD = 10
This Question Belongs to Arithmetic Ability >> Geometry
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