he circle below has center O , and its radius is 7m . Given that =m∠AOB60° ,

Mathematics
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Mar 31st, 2015

area of sector = (central angle/360)*(pi r^2)

                      = (60/360)*(pi 7^2)

                    = (49/6)*pi

length of arc =     (central angle/180)*(pi r)

                     = (60/180)*(pi 7)

                   = (7/3)*pi

Mar 31st, 2015

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Mar 31st, 2015
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Mar 31st, 2015
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