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Mathematics 19 Online
OpenStudy (anonymous):

What is the area of the sector bound by the center of the circle and CD in the circle below

OpenStudy (anonymous):

OpenStudy (anonymous):

9.42 ft2 19.54 ft2 34.89 ft2 88.31 ft2

OpenStudy (anonymous):

@myininaya

OpenStudy (anonymous):

@E.ali

OpenStudy (anonymous):

we have : Part of circle = angle / 360 so have : 30/360 = 1 / 12 And s is : pi * r * part of circle pi * r * 1/12 Got it ?:)

OpenStudy (anonymous):

whats 1/12?

OpenStudy (anonymous):

I know pi is 3.14 and r is 6

OpenStudy (anonymous):

1/12 is the part of circle we have ;)

OpenStudy (anonymous):

ok so when I take 1/12 * 3.14 * 6 I get 1.57 and that's none of my answers what have I done wrong ?

OpenStudy (anonymous):

No No ! Its : pi * r^2 * part of that ;)

OpenStudy (anonymous):

Means : pi * 1/12 * 36 ...

OpenStudy (anonymous):

i got 9.42 :D

OpenStudy (anonymous):

Yeah ! 9.42

OpenStudy (anonymous):

thank you sooo muchhhh @E.ali

OpenStudy (anonymous):

Is it in your answers ?!

OpenStudy (anonymous):

And welcome ;) I do nothing ! You re smart ...

OpenStudy (anonymous):

yes its an answer and couldn't have done it without you

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