一个圆锥的母线长为5cm，底面圆半径为3cm，则这个圆锥的侧面积是_爱下问搜题

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问题填空题

一个圆锥的母线长为5cm，底面圆半径为3cm，则这个圆锥的侧面积是（）cm²（结果保留π）。

答案

15π

补全对话，情景问答

从方框中选择合适的选项补全对话。

A. How about the party?
B. I stayed at home.
C. When did you go to the party?
D. Not much fun.
E. What did you do?
F. Thank you very much.
G. We sang and danced.

A: Hey, Sally! I didn't see you at the party.
B: 1.
A: Why didn't you come?
B: I had lots of things to do.
A: 2.
B: I cleaned my room and then I went to the library.
A: 3.
B: Well, it wasn't too bad. I like doing some reading on weekends. 4.
A: Great!
B: What did you do at the party?
A: 5.
A: But after that I had to do my homework.

填空题

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