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Can someone explain to me how to do this? Thank You

Can someone explain to me how to do this? Thank You-example-1
User VolAnd
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1 Answer

5 votes

Answer:

x=80

Explanation:

he whole circle measure 360

since the external Angle is 242 and external 69 then

x-31+69+242=360

x+280=360

x=360-280

x=80

check : x-31 the measure of the angle is 49

49+69+242=360

User Yonah
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4.5k points