Question

In a △ABC, ∠A = 50°, ∠B=70°, The measure of ∠C is _____

60°
70°

Answer 1

(a)60

is the correct answer

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Answer 2

Answer:

Given ∠A = 50° and ∠B = 70° Sum of all three angles of a triangle is 180°. ∠A + ∠B + ∠C = 180° ⇒ 50° + 70° + ∠C = 180° ⇒ 120° + ∠C = 180° ⇒∠C = 180° – 120° = 60