Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A circle is inscribed in a triangle ABC touching the side AB at D such that AD = 5, BD = 3. If ∠ A = 60 0 then length BC
equals
A
9
B
C
13
D
12
Text Solution
Verified by ExpertsThe correct answer is:
C
tan 30 0 = 
⇒ r = 
Now tan 
……..(i)
Now cos B 
∴ sin B 
∴ sin C = sin(A + B) = sinA cosB + cosAsinB
= 
Now 
a = 13
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