设两圆半径为5k,3k,
(1)当两圆外切时,5k+3k=8,k=1,两圆的半径为5,3
(2)当两圆内切时,5k-3k=8,k=4,两圆的半径为20,12
两圆的半径之比为5:3,当两圆相切时,圆心距为8cm,求两圆的半径?
两圆的半径之比为5:3,当两圆相切时,圆心距为8cm,求两圆的半径?
数学人气:946 ℃时间:2020-01-30 02:08:05
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