Question

Two angles of a triangle are 80 and 50. The third angle will be *


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Answer 1

Let the third angle be x. 80+30+x=180 degrees. Because we know that sum of all angles in a triangle is 180

Answer 2

Answer:

let ABC is a triangle

A=80° B= 50°

the sum of all angle of triangle is 180°

A+B+C = 180°

80°+50°+C = 180°

130° +C = 180°

C= 180°-150°

C= 30°

therefore, measure of third angle is 30°