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Finding the Circumference of a Circle Using Radius and Diameter

Finding the Circumference of a Circle Using Radius and Diameter

Assessment

Interactive Video

Mathematics

7th Grade

Hard

Created by

Lily L

FREE Resource

4 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The radius of the circle is 9cm.

C = 2πr

C = 2π9

Based on the previous steps, what should you write next?

C = 18π
C = 9π
C = 2π18
C = 3π

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The radius of the circle is 9cm.

C = 2 x π x r

C = 2 x π x 9

Based on the previous steps, what is the approximation of the circumference?

Use 3.14 for π.

56.52cm

67.38cm

36.17cm

53.42cm

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The diameter of the circle is 12ft.

C = d x π

C = 12 x π

Based on the previous steps, what is the circumference of the circle?

Use 3.14 for π.

25.12ft
30.48ft
42.56ft
37.68ft

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The diameter of the circle is 12ft.

C = d x π

C = 12 x π

Based on the previous steps, what is the circumference of the circle?

Use 3.14 for π.

37.68ft
30.24ft
40.56ft
25.12ft

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