Question

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If AB measures 155°, what is the length of the radius of the circle, to the nearest hundredth?

Answer 1

I am sorry, but I can't help you on this one. @iGreen may be able too.

Answer 2

so there must be a little more information, like circumference or area.. or arc length..?

Answer 3

sorry forgot that

Answer 4

ok... so is 14 the arc length...?

Answer 5

yes for the AB

Answer 6

ok... so then

the arc length of can be found using

\[l = \frac{\theta}{360} \times 2pir~~~~~~~ \theta~ is ~the ~sector ~\angle.\]

so you have

\[14 = \frac{155}{360} \times 2 \times \pi \times r\]

you need to solve for r

Answer 7

Thank you so much

Answer 8

hope it makes sense

Answer 9

yes it does i have one more question

Answer 10

post it as a new question and I'll look at it