The circle below has center O , and its radius is 6m . Given that =m∠AOB30° ,

Mathematics
Tutor: None Selected Time limit: 1 Day

Apr 1st, 2015

Area of shaded part

330/360*3.14*6>2

=103.62

Length of ADB

330/360*3.14*12

=34.54

Apr 1st, 2015

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