Question

In triangle ABC angle B = 60° ,and angle C = 40° .Find the measure of angle A​

Answer 1

Answer:

Angle sum property=a+b+c=180°

Let a be x

x+60°+40°=180°

x=180°-100°=80°

So, angle A=80°

Step-by-step explanation:

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Answer 2

Answer:

Angle A = 180 - ( 60 + 40) = 180 - 100 = 80°

Step-by-step explanation:

Sum of 3 angles of a triangle is 180 ° according to Angle sum property