Published by:
CGP EDU Academic Team
Published on: August 12, 2026
In a Δ ABC, A: B : C = 3 : 5 : 4.Then a + b + c 
is equal to
Text Solution
Verified by ExpertsThe correct answer is:
C
It is clear that A = 45 0 , B = 75 0 , C = 60 0 ⇒ 
= 
= 
⇒ 
= 
= 
= a 
= 
= 
Now to test choice we will put every thing in the expression a
+ b + c 
in terms of b.
Indeed a + b + c 
= 
+ b + 
= b 
= 3b
⇒ choices , and are wrong and becomes true.
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