4x = (130 - 2x) so x = 65/3
(3y + 40) + (130 -2x) = 180 because the angles are supplementary
plug in x
3y + 40 + 130 - 2(65/3) = 180
so 3y = 95/3
therefore y = 95/6
Answer: B
Step-by-step explanation:
Answer:
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Step-by-step explanation:
Step-by-step explanation:
The Circumference is:

Radius r is:

So,
