Area and Volume.
2012-03-26 3:18 am
find the area of the coloured region.
圖片參考：http://imgcld.yimg.com/8/n/HA00101881/o/701203250067013873383231.jpg
回答 (2)
2012-03-26 5:37 am
10. Area = (15x15) - 2( 10^2π/4) - 2( 5^2π/4) = 28.7cm^2 ( 3 s.f.)
9. Area = (12x4) - (4^2π/4) - (4^2π /2) = 10.3 cm^2 ( 3 s.f.)
9. Area = (12x4) - (4^2π/4) - (4^2π /2) = 10.3 cm^2 ( 3 s.f.)
參考: 自己
2012-03-26 4:39 am
收錄日期: 2021-04-20 12:28:14
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