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剩下的面積=園面積-正方形面積 圓面積=3.14乘以半徑的平方 正方形的面積=邊長乘以邊長,圓的直徑=正方形的對角線長, 所以:圓面積=3.14×(10÷2)^2 =3.14×25=78.5 正方形的邊長=10除以根號2 正方形面積:(10除以根號2)乘以(10除以根號2)=50 剩下的面積=78.5-50=28.5
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