Ask your own question, for FREE!
Mathematics 11 Online
OpenStudy (jilltalks):

How do you find the measure of a central angle in degrees?

OpenStudy (kittiwitti1):

I'm not sure how to get degrees directly, but you can get the central angle in radians The formula for arc length \(s\) of a circle with central angle \(\theta\) and radius \(r\) is\[\large{s=r\theta}\]To find the angle \(\theta\) you must isolate it:\[\large{\theta=\frac{s}{r}}\]info link: http://www.montereyinstitute.org/courses/DevelopmentalMath/TEXTGROUP-1-19_RESOURCE/U19_L2_T1_text_container.html

OpenStudy (kittiwitti1):

Are you given the arc length in the problem?

OpenStudy (jilltalks):

I think I am supposed to find the arc length

OpenStudy (wolf1728):

How is the problem worded?

OpenStudy (jilltalks):

It's a project about a Ferris wheel, the Singapore flyer.

OpenStudy (kittiwitti1):

Hmm. May we see the problem itself? Then we can help you work through it.

OpenStudy (wolf1728):

If you gave us the problem we could help you a lot more.

OpenStudy (jilltalks):

There is no given problem. I am supposed to solve for the measure of a central angle of the Singapore flyer.

OpenStudy (wolf1728):

Here's what Wikipedia says about the Singapore Flyer: https://en.wikipedia.org/wiki/Singapore_Flyer It has a height of 165 meters. Here is a central angle calculator: http://www.1728.org/radians.htm

OpenStudy (jilltalks):

I am using the calculator, but it asks me to input the arc length. The formula to find the ark length is the radius times the central angle. How do I find the central angle?

OpenStudy (wolf1728):

It's like asking what's the distance if you drive for five hours. You need more information than that.

OpenStudy (jilltalks):

Thank you for your help.

OpenStudy (wolf1728):

Gee, I can help you more with that.

OpenStudy (jilltalks):

It's fine. My question is too vague. I need to do a little research myself.

OpenStudy (wolf1728):

Okay Jill.

TheSmartOne (thesmartone):

I helped with this topic just today: http://openstudy.com/study#/updates/57ab674fe4b0a716cab3f61a Since the question is vague, I would assume you choose your own central angle.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!