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katen-ka-za [31]
4 years ago
11

Can someone help me find the value of x?

Mathematics
1 answer:
tensa zangetsu [6.8K]4 years ago
3 0

Answer:

The measure of arc x is 60\°

Step-by-step explanation:

we know that

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

so

In this problem

55\°=\frac{1}{2}(170\°-x\°)

solve for x

110\°=(170\°-x\°)

x\°=(170\°-110\°)=60\°

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