这个圆锥的底面半径和高是两个变数.
∴
4π＜圆锥的侧面积＞0
圆锥的母线长2cm,过顶点和底面圆心的截面面积为2平方,则该圆锥的侧面积为多少
圆锥的母线长2cm,过顶点和底面圆心的截面面积为2平方,则该圆锥的侧面积为多少
其他人气：517 ℃时间：2019-11-07 04:44:28
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