圆的周长

圆的周长

5th Grade

15 Qs

quiz-placeholder

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圆的周长

圆的周长

Assessment

Quiz

Mathematics

5th Grade

Practice Problem

Hard

Created by

黄胜宇 黄胜宇

Used 2+ times

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15 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Media Image

计算该圆的周长 Π(pi)取3.14

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪个是圆周长的计算公式

C=πr

C=2πr

C=2πd

S=πd

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

计算图中阴影部分的周长

4π+4

8π+8

4π+8

8π+4

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

请计算图中图形的周长

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

请问如何用半径r表达圆的周长

C=2πr

C=πr

C=πr2

i don't know

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

圆的半径扩大到原来的2倍,它的周长就( )

扩大到原来的4倍

扩大到原来的8倍

扩大到原来的2倍

不变

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