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Name _____________________________
Date ___________________
Area and Circumference of a Circle
To the nearest tenth, find the circumference. Use 3.14 for .
1.  
VX
  =  32 mm
2.  
TR
  =  69 in
3.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.
4.  
LT
  =  78 cm

Find the circumference. Use 
22

7
 for .

5.  
HB
  =  
13
1

2
 cm
6.  
KJ
  =  
22
1

3
 mm
7.  
AC
  =  
18
1

2
 in
8.  
FX
  =  
12
4

5
 ft

To the nearest tenth, find the circumference. Use 3.14 for .
9.  
radius  =  3.4 cm


10.  
diameter  =  75.23 in


11.  
diameter  =  49.225 ft


12.  
radius  =  69.7 mm



 

Key #2
aKey #2
Find the square root.
13.  
  
25

14.  
  
484

15.  
  
400

16.  
  
4

17.  
  
1

18.  
  
81

19.  
  
16

20.  
  
441

21.  
  
64

22.  
  
529

23.  
  
144

24.  
  
361


Find the value of n.
25.   242  =  n
26.  
  
n
  =  8

27.  
  
484
  =  n

28.   n2  =  441
29.   n2  =  169
30.   252  =  n
31.  
  
n
  =  2

32.  
  
225
  =  n

33.  
  
400
  =  n

34.   12  =  n
35.   n2  =  81
36.  
  
n
  =  10


Circle the number that is the best estimate of the square root.
37.  
11

  2.7  2.8  3.3  3.5
38.  
37

  6.1  6.8  5.3  5.4
39.  
161

  13.5  12.4  12.7  13.6
40.  
98

  9  8.9  9.9  10.4

To the nearest tenth, find the area of each circle. Use 3.14 for .
41.  
DR
  =  40 mm
42.  
PF
  =  46 ft
43.  
SY
  =  7 cm
44.  
KY
  =  17 in

 

Key #2
aKey #2
To the nearest tenth, find the area of each circle. Use 3.14 for .
45.  
ND
  =  47.61 in
46.  
UM
  =  8.3 mm
47.  
RX
  =  12.587 cm
48.  
QF
  =  46.8 ft

Find the area of each circle. Use 
22

7
 for .

49.  
JG
  =  
3
1

4
 ft
50.  
XG
  =  
4
1

2
 cm
51.  
BH
  =  
8
1

3
 mm
52.  
NY
  =  
7
1

2
 ft

To the nearest tenth, find the area of each circle. Use 3.14 for .
53.  
diameter  =  40 cm


54.  
radius  =  8 in


55.  
diameter  =  7 mm


56.  
radius  =  48 ft



To the nearest tenth, find the area of each circle. Use 3.14 for .
57.  
diameter  =  49.545 mm


58.  
radius  =  43.2 cm


59.  
radius  =  36.5 ft


60.  
diameter  =  39.278 in



 

Key #2
aKey #2
Find the area of each circle. Use 
22

7
 for .

61.  
diameter  =  
6
1

2
 mm


62.  
radius  =  
5
3

5
 in


63.  
radius  =  
8
1

3
 mm


64.  
radius  =  
2
1

4
 cm



Find the area of the partial circle. Use 
22

7
 for .

65.  
diameter  =  22 cm
Find the area of  
3

8
  of the circle
66.  
radius  =  5 in
Find the area of  
1

2
  of the circle
67.  
diameter  =  13 mm
Find the area of  
2

9
  of the circle
68.  
radius  =  43 ft
Find the area of  
1

2
  of the circle

Find the square root.
69.  
  
9

70.  
  
169

71.  
  
225

72.  
  
81

73.  
  
441

74.  
  
16

75.  
  
256

76.  
  
400

77.  
  
144

78.  
  
49

79.  
  
121

80.  
  
25


 


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