Published by:
CGP EDU Academic Team
Published on: August 11, 2026
In a Δ ABC, A = 
, b – c = 3 
cm and area ( Δ ABC) = 
cm 2 . Then ‘a’ is
A
6 
cm
cm
B
9 cm
C
18 cm
D
7 cm
Text Solution
Verified by ExpertsThe correct answer is:
B
A = 
, b – c = 3 
and Area = 
cm 2
Δ = 
bc sin A ⇒ 
= 
bc sin 
⇒ bc = 18
cos 
= 
= – 
⇒ 
= – 
⇒ a = 9
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