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mestny [16]
3 years ago
7

What is m? 49° 77° 98° 161°

Mathematics
2 answers:
Mariana [72]3 years ago
4 0

we know that

The measurement of <u>the external angle</u> is the semi-difference of the arcs it includes.

In this problem

21\°=\frac{1}{2}[arc\ RU-arc\ SU]

Solve for the measure of arc SU

42\°=[arc\ RU-arc\ SU]

arc\ SU=arc\ RU-42\°

arc\ SU=119\°-42\°=77\°

therefore

the answer is

The measure of the arc SU is 77\°

andrey2020 [161]3 years ago
4 0

Answer:

77

Step-by-step explanation:

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