大师作文网Consider circle with centre O.AB is a chord of the circle.AO
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Consider circle with centre O.AB is a chord of the circle.AOB is a right angle.C is a point on the
circumference of the circle
such that angle BOC = 60 degrees.Compare:
Col A:Area of Triangle AOB
Col B:Area of sector BOC
答案怎么说是三角形面积大呢.
circumference of the circle
such that angle BOC = 60 degrees.Compare:
Col A:Area of Triangle AOB
Col B:Area of sector BOC
答案怎么说是三角形面积大呢.
答案错了吧,三角形面积 π*（半径）/2,扇形面积 π*（半径）平方/6,π/6 > 1/2 ,应该是扇形面积大
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