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Mathematics 9 Online
OpenStudy (anonymous):

Help

OpenStudy (anonymous):

OpenStudy (anonymous):

help me find out how to solvve the arc length of CD

OpenStudy (kropot72):

First you need to find the circumference of the circle. Can you do that?

OpenStudy (anonymous):

62.83?

OpenStudy (anonymous):

C=2*pi*r right?

OpenStudy (kropot72):

Correct. Do you know how many degrees there are in a circle?

OpenStudy (anonymous):

360

OpenStudy (kropot72):

Correct again. So the arc length of CD is the circumference of the circle multiplied by 40/360.

OpenStudy (anonymous):

6.98?

OpenStudy (kropot72):

You are correct. However you must put the units of measurement.

OpenStudy (anonymous):

oh feet.

OpenStudy (anonymous):

Thank you M8!

OpenStudy (kropot72):

Correct. You're welcome :)

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