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Gr. 7 - U4 - Circle Review

Last updated almost 5 years ago

16 questions

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Question 1

1.

Use a compass. Draw a circle with radius 3 cm.

Question 2

2.

Two circles have the same centre. Their radii are 5 cm and 10 cm. Another circle lies between these circles. Give two possible diameters for this circle.

Question 3

3.

Find the radius of a circle with the diameter of 7.8 cm.

Question 4

4.

Find the radius of a circle with the diameter of 8.2 cm.

Question 5

5.

Find the radius of a circle with the diameter of 10 cm.

Question 6

6.

Find the radius of a circle with the diameter of 25 cm.

Question 7

7.

Is it possible to draw two different circles with the same radius and diameter? Why or why not?

Question 8

8.

Calculate the circumference with the radius of 6 cm.

Question 9

9.

Calculate the circumference with the diameter of 18m.

Question 10

10.

Calculate the circumference a wheelchair wheel with diameter 66 cm.

Question 11

11.

Calculate the circumference a tire with radius 37 cm.

Question 12

12.

Calculate the circumference a hula-hoop with diameter 60 cm.

Question 13

13.

Suppose the circumference of a circular pond is 76.6 m. What is its diameter?

Question 14

14.

Find the radius of a circle with a circumference of 256 cm.

Question 15

15.

Find the radius of a circle with a circumference of 113 cm.

Question 16

16.

An auger is used to drill a hole in the ice, for ice fishing. The diameter of the hole is 25 cm. What is the circumference of the hole?