Published by:
CGP EDU Academic Team
Published on: August 11, 2026
If 
= 2, then prove that the triangle is right angled.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
= 2 ⇒ 
= 2
⇒ 
= 2 ⇒ 2(bc – ab – ac + a 2 ) = (2s – 2a) 2
⇒ 2bc – 2ab – 2ca + 2a 2 = (b 2 + c 2 + a 2 – 2ab + 2bc – 2ca)
a 2 = b 2 + c 2
⇒ triangle is right angled.
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