Question

Find the unknown angle of triangle 100+20+x

Answer 1

Answer:

60

Step-by-step explanation:

sum of angles equals 180 degrees so just subtract the sum of 100 and 20 from 180.

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Answer 2

Answer:

sum of angle of triangle is 180

100 + 20 + x = 180

120 + x = 180

x = 180 - 20

x = 60