一道澳洲的高数题求解
12Aframeintheshapeofanequilateraltriangleenclosesthreecirculardiscsofradiuslength5cms...
12 A frame in the shape of an equilateral triangle encloses three circular discs of radius length 5 cm so that the discs touch each other. Find
a) the perimeter of the smallest frame which can enclose the discs
b) the area enclosed between the discs.
就是说一个等边三角形框框里塞了三个半径为5cm的圈圈正好塞满,求
a 三角形框框的周长
b 三角形框框减去三个圈圈的面积
拜托啦~一道vce的高数题 展开
a) the perimeter of the smallest frame which can enclose the discs
b) the area enclosed between the discs.
就是说一个等边三角形框框里塞了三个半径为5cm的圈圈正好塞满,求
a 三角形框框的周长
b 三角形框框减去三个圈圈的面积
拜托啦~一道vce的高数题 展开
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