In a ΔABC, if ∠A = 72° and ∠B = 63°, find ∠C. – InterviewSolution

1.

In a ΔABC, if ∠A = 72° and ∠B = 63°, find ∠C.

Answer»

We know that the sum of the angles of a triangle is 180^o.

∴ ∠A + ∠B + ∠C = 180^o

= 72^o+ 63^o+ ∠C = 180^o

= 135^o + ∠C = 180^o

= ∠C = 180^o– 135⁰

= ∠C = 45^o

Hence, the measures of ∠C is 45^o.

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