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M∠1 = _°

a) 140
b) 160
c) 80

M∠1 = _° a) 140 b) 160 c) 80-example-1

2 Answers

1 vote
∠1 = 1/2 (220 - 60) = 80°

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Answer: 80°
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User Mir S Mehdi
by
5.8k points
1 vote

Answer:

Option c
80\°

Explanation:

we know that

The measurement of the external angle is the semi-difference of the arcs which comprises

so

in this problem


m<1=(1)/(2)(220\°-60\°)=80\°

User Oliwa
by
6.5k points