Question

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

Answer 1

Answer:

Step-by-step explanation:

The sum of all angles in a triangle =180°

<A+<B+<C =180°

55°+65°+<C=180

<C=180°-120°

<C=50°

Ans

Answer 2

Answer:

PROPERTY OF TRIANGLE IS THAT THE ANGLE SUM OF ALL ANGLE IS 180°.

Step-by-step explanation:

∠A+∠B+∠C=180°

A+55+65=180

A+120=180

A=180-120°

A=60°

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