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T Jahnavi Grade: 11
        
In a triangle ABC if 2c2=a2+b2 then the largest possible degree measure of the angle C is
one year ago

Answers : (1)

GAGANDEEP SINGH
46 Points
										I think it`s 60°I applied cosine formula on cos C to get cosC=c^2/2ab. Then applied AM-GM inequality on (a^2,b^2) to get c^2/2ab>=1/2. Then applied arc cos function on the the former to get the answer.
										
one year ago
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