Question

If the two angles of a triangle are 80°, 50° respectively. Find the measure of the third angle.​

Answer 1

Answer: 50°

Step-by-step explanation:

Angle A= 80°

Angle B= 50°

Angle A+B= 80°+50°= 130°

The total angle of a triangle is 180°

So, Angle C= The total angle of a triangle-Angle B+C= 180°-130°= 50° answer

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Answer 2

Answer:

the angle of a triangle is 180°

A = 80 , B = 50 , C = ?

C + 80 (a) + 50 (b) = 180

C + 130 (80 was added with 50) =180

c = 180 - 130

c = 50

hence, the measurement of the third angle is 50°

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