圆周长及面积
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
通過圓心且兩端都是在圓的周界上的線段,稱為 ________。
圆心
圆周
直径
半径
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
若一圆的直径为14 cm,求其半径。
7 cm
3.5 cm
8 cm
4 cm
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若一圆的半径是35 cm,求其周长(取 π=22/7)。
55 cm
110 cm
154 cm
220 cm
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
陆译的书桌为一半径等于 7 m的半圆形状,求此书桌的周长。 (取 π = 22/7)
22 m
44 m
36 m
58 m
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
小布在墙上画了一幅圆形的画。如果绘画的直径为4 cm,那么他需要多少油漆才能覆盖圆的内部?这个问题是问您要找到面积,周长还是都不是?
面积
周长
都不是
不知道
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
一圆形赛道的直径为0.5 mile (英里)。
那么一辆车在赛道上一圈能行驶多远?
0.25 mile
1 mile
1.57 miles
15.7 miles
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
今夏家外有一个圆形花圃,用了66 m的铁丝围成篱笆,问这个花圃的面积是多少?(取π = 22/7)
346.5 m2
86.625 m2
1386 m2
132 m2
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