Posted by **Temperance** on Monday, June 14, 2010 at 1:05am.

What is the radius if:

degree of measurement of arc=30

length=1/3xy(pi)

My answer was 8xy.

degree of measurement of arc=40

length=8/9(t)(pi)

My answer was 9t.

degree of measurement of arc=18

length=6(y)pi

My answer was 45y.

These are the questions I missed, along with my answers. I would be grateful if someone could explain what I did wrong and work out the problem, so that I may understand it fully. Cheers!

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