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3 years ago

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:

Step-by-step explanation:

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