Test - OK Mastering the OSTP in Grade 7 math Chapter 11

1 pt

1.

If the diameter of a circle is 18 inches, what is the radius?

A

36 inches

B

9 inches

C

18 inches

D

4.5 inches

1 pt

2.

If the radius of a circle is 24 feet, what is the diameter?

A

24 feet

B

36 feet

C

48 feet

D

12 feet

1 pt

3.

If the radius of a circle is 7 inches, what is the circumference of the circle? C = 2πr

A

7π inches

B

14π inches

C

21π inches

D

28π inches

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