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Mathematics 8 Online
OpenStudy (anonymous):

Can someone help me with circles? and circumference and junk??

OpenStudy (anonymous):

hero (hero):

Hint: \(s = r\theta \) \(\theta = 135^{\circ} \\ r = 14\) Convert \(\theta\) from degrees to radians

OpenStudy (anonymous):

Can you give me anymore info?

hero (hero):

\(s = r\theta\) is the formula for arc length. Solving for s will give you the length of the living room wall.

hero (hero):

All you have to do is convert \(135^{\circ}\) to radians, then multiply that by the radius r = 14

OpenStudy (anonymous):

So its s=14 *135?

hero (hero):

You can't multiply that until you convert 135 to radians. When it comes to arc length \(\theta\) only makes sense in radians rather than degrees.

OpenStudy (anonymous):

How do I convert it?

hero (hero):

Multiply \(135^{\circ}\) by \(\frac{\pi}{180^{\circ}}\)

OpenStudy (anonymous):

0.0174444 is the number?

hero (hero):

I'm pretty sure that's not the number. Did you convert degrees to radians yet?

OpenStudy (anonymous):

so 2.355 * 14 will be the answer?

hero (hero):

Yes, correct.

OpenStudy (anonymous):

So it would be 32.97 or 33 feet? or 31 feet?

OpenStudy (anonymous):

I'm thinking its 33, am I right?

OpenStudy (anonymous):

ty

hero (hero):

Yes, that's the only one it is closest to

OpenStudy (anonymous):

Do you think you could help me with some other ones?

hero (hero):

Just post your next question and we'll see. But close this question, then post your next question.

OpenStudy (anonymous):

k

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