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Mathematics 8 Online
OpenStudy (anonymous):

A circular picture is 8 inches in diameter. Part A What is the area of the picture in square inches? A. 4π square inches B. 8π square inches C. 16π square inches D. 32π square inches

OpenStudy (anonymous):

Need help ASAP! Plz!!

OpenStudy (aaronandyson):

Where is the picture??

OpenStudy (inowalst):

You dont need a picture.

OpenStudy (anonymous):

What do you mean?

OpenStudy (inowalst):

@Megan27 Look at this link: http://openstudy.com/study#/updates/53fb3bc8e4b0010fcd98bfb7

OpenStudy (inowalst):

It explains..

OpenStudy (aaronandyson):

Area of a circle is \[a = \pi \times r^2\]

OpenStudy (aaronandyson):

2R = D 2r = 8 r = 8/2 r = 4

OpenStudy (aaronandyson):

so\ \[\pi \times 4\]

OpenStudy (anonymous):

ok so its 4pi

OpenStudy (aaronandyson):

Yes.

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