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Radius - Diameter - Circumference

Study Slideshow

What is the radius of a circle with a diameter of 6cm?

3cm

5

What is the radius of a circle with a diameter of 16cm?

8cm

10

What is the radius of a circle with a diameter of 30cm?

15cm

5

What is the radius of a circle with a diameter of 74cm?

37cm

15

What is the radius of a circle with a diameter of 15cm?

7.5cm

10

What is the radius of a circle with a diameter of 45cm?

22.5cm

15

What is the diameter of a circle with a radius of 30cm?

60cm

15

What is the diameter of a circle with a radius of 4cm?

8cm

5

What is the diameter of a circle with a radius of 3.5cm?

7cm

10

What is the diameter of a circle with a radius of 25cm?

50cm

15

What is the diameter of a circle with a radius of 3.25cm?

6.5cm

20

What is the diameter of a circle with a radius of 0.75m?

1.5m

15

What is the approximate circumference of a circle with a diameter of 8cm?

25.12cm (answers between 24 and 26)

15

What is the approximate circumference of a circle with a diameter of 2cm?

6.28cm (answers between 6 and 7)

15

What is the approximate circumference of a circle with a diameter of 12m?

37.68m (answers between 36 and 38)

20

What is the approximate circumference of a circle with a diameter of 40cm?

125.6cm (answers between 120 and 130)

25