6th
grade

Mathematics

56%

accuracy

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1. Multiple Choice
20 seconds
1 pt
what word is 圆柱？
cylinder
circle
diameter
cone
2. Multiple Choice
20 seconds
1 pt
when radius is halved, how does the circumference of circle change?
does not change
2
3. Multiple Choice
20 seconds
1 pt
when radius is halved, how does the area of circle change?
does not change
2
4. Multiple Choice
20 seconds
1 pt
When side expansion(侧面展开图) of cylinder is a square, it means_____
c=s
c=h
d=h
s=h
5. Multiple Choice
1 minute
1 pt
Find the lateral area of cylinder whose height is 3cm and base radius is 1cm
6. Multiple Choice
20 seconds
1 pt
What is surface area?
表面积
侧面积
底面积
横截面积
7. Multiple Choice
30 seconds
1 pt
25
0.25
2.5
0.025
8. Multiple Choice
2 minutes
1 pt
188.4, 213.52
213.52, 188.4
106.76, 188.4
213.52, 106.76
9. Multiple Choice
45 seconds
1 pt
测量一个鸡蛋的体积，用一个底面直径是8cm的圆柱形玻璃杯，实验如图，误差忽略不记，则鸡蛋的体积是多少立方厘米？
50.24
25.12
75.36
200.96
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