Question

. In ABC, if ∠A = 72° and ∠B = 63°, find ∠C. *
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Answer 1

Answer:

A+B+C=189

72+63+C=180

C=180-135

C=55

Answer 2

The sum of all angle of triangle is 180

= <A+<B +<C=180

72°+63°+<C= 180

135+<C= 180

<C=180°-135°

<C=45°