Question

Two angles of triangle are 450 and 55º. Find the measure of third angle

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Answer 1

Answer:

45+55+x=180°

100+x=180°

x=80°

third angle is 80°

Answer 2

Answer:80 degree

Step-by-step explanation:As we know

sum of all angles is 180°

Let the third angle be x

45+55°+x = 180°

x+100= 180°

x =180°-100°

x = 80°