Question

In ∆ , ∠B = 55˚ and ∠C = 65˚ , then ∠A = _____​

Answer 1

Step-by-step explanation:

(Sum of all angle is 180 degree)

180-(55+65)

180-120=60

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Answer 2

Answer:

Total sum of all the angles in a triangle = 180°

∠A = unknown

∠B = 55°

∠C = 65°

To find ∠A,

Sum of (∠B and ∠C) - 180°

=> (55° + 65°) - 180°

=> 120° - 180°

=> 60°

Ans:- ∠C = 60°

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