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Find the Radius and Diameter

Total questions: 17

Worksheet time: 17mins

Name
Class
Date
1.

Find the radius of a circle if its diameter is 12.8 feet. (Type the answer including the units)

(a)  

2.

Find the radius of a circle if its diameter is 15.9 centimeters. (Type the answer including the units)

(a)  

3.

Name the part of the circle pointed by the arrow.

a)

Radius

b)

Diameter

c)

Circumference

d)

Arc

4.

Find the diameter of a circle if its radius is 7.5 meters. (Type the answer including the units)

(a)  

5.

What is the diameter?

a)

8

b)

16

c)

10

d)

4

6.

What is the radius?

a)

18

b)

72

c)

38

d)

14

7.
a)
center
b)
diameter
c)
radius
8.
a)
center
b)
diameter
c)
radius
9.

Diameter ....

a)

A. BD

b)

B. IR

c)

C. DR

d)

D. DI

10.

Find the diameter in this picture!

a)

ED

b)

OC

c)

DC

d)

BA

11.

The radius of this circle is ....

a)

A. 32 m

b)

B. 32 m

c)

C. 8 m

d)

D. 8 km

12.

If ST = 32 cm and WT = 20 cm, then the radius of this circle is .....

a)

RS = 10cm

b)

VT = 10 cm

c)

TW = 10cm

d)

RV = 10 cm

13.

The radius of this circle is .....

a)

A. 12 km

b)

B. 13 km

c)

C. 14 km

d)

D. 15 km

14.

The radius of this circle is .....

a)

A. 25 cm

b)

B. 25 mm

c)

C. 50 cm

d)

D. 100 mm

15.

The radius ....

a)

A. DI

b)

B. IR

c)

C. RI

d)

C. BD

16.

Radius ....

a)

A. GT

b)

B. TG

c)

C. AG

d)

D. OG

17.

If OC = OA = 5 cm, then the diameter of this circle is ....

a)

A. 10 mm

b)

B. 100 mm

c)

C. 5 cm

d)

D. 100 cm