试题与答案

已知圆锥的母线长为5cm,底面半径为3cm,则此圆锥的侧面积为[ ] A.15π

题型:选择题

题目:

已知圆锥的母线长为5cm,底面半径为3cm,则此圆锥的侧面积为[ ]

A.15πcm2

B.20πcm2

C.12πcm2

D.30πcm2

答案:

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