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Math

 

Name _____________________________
Date ___________________

Classify the number as rational, irrational, or not a real number.
1.  
  
-196
2.  
3.  
5

8
4.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.
5.   3.141592
6.  
  
22


  
22
7.  
5

3
8.   3.4

Find the circumference of each circle. State your answer in terms of and also round your answer to the nearest tenth.
9.  
radius =   15.41 cm
10.  
diameter =   30 cm
11.  
diameter =   43.18 cm
12.  
radius =   
9

5
 cm
13.  
diameter =   20 cm
14.  
diameter =   45.02 cm

Complete.
15.   Samantha didn't believe there was a difference in the size of large and extra large eggs, so she measured the circumference of one large egg and one extra large egg. The circumference of the large egg is one hundred thirty-five and two hundredths millimeters and the circumference of the extra large egg is two hundred seventy-six and thirty-two hundredths millimeters. The diameter of the larger egg is how much larger than the diameter of the smaller egg?
16.   Kyle bought a very large star map for his bedroom wall. The map is round. Its radius is four feet. What is the circumference and area of the wall map?

 

Key #2
Find the area of each circle. State your answer in terms of and also round your answer to the nearest tenth.
17.  
diameter =   12 mm
18.  
radius =   11.77 m
19.  
diameter =   43.56 mm
20.  
radius =   17 m
21.  
radius =   3.34 m
22.  
diameter =   20 mm

Find the radius of the circle. (use = 3.14)
23.  
A  =  196  m2
24.  
C  =  128.24 mm
25.  
C  =  21.88 m
26.  
A  =  0.36  mm2
27.  
C  =  37.68 m
28.  
A  =  
25

49
  m2

Find the volume of each solid to the nearest tenth. (use = 3.14)
29.  
a  =    12 m
b  =    58 m
30.  
a  =    5.73 km
b  =    6 km
c  =    14 km
31.  
a  =    10.6 ft
b  =    20.8 ft

Find the volume of each solid to the nearest tenth. (use = 3.14)
32.  
a  =    5 m
b  =    9 m
33.  
a  =    2 cm
b  =    9 cm
c  =    7 cm
34.  
a  =    6.3 yd
b  =    8.3 yd

 

Key #2
Find the surface area of each solid to the nearest tenth. (use = 3.14)
35.  
a  =    56 cm
b  =    69 cm
c  =    66 cm
d  =    65 cm
36.  
a  =    17.4 mm
b  =    5 mm
37.  
a  =    20 in
b  =    4 in
c  =    8 in

Complete.
38.   Caleb made five pepperoni pizzas for a party. He cut the pepperoni himself from a sausage that was 12 inches long and 1 1/2 inches in diameter. The pizzas were each 14 inches in diameter. His friend Emily is a real math whiz (a math freak some say) and took the opportunity to calculate what percent of the total pizza surface area was covered by pepperoni. The pepperoni was cut into slices 1/8 of an inch thick. Each pizza has the same number of whole pepperoni slices (he ate any extra pepperoni!). What percent of the total pizza surface area was covered by the pepperoni? Round your answer to the nearest hundredth.
39.   If a rubber band can be stretched to a circular shape that has a radius of 2.2 inches. How many 1-mm diameter toothpicks of could fit within it? (1 inch = 25.4 mm)

Complete.
40.   If a rubber band can be stretched to a circular shape that has a radius of 2.5 inches. How many 1.1-mm diameter toothpicks of could fit within it? (1 inch = 25.4 mm)
41.   If a log that is 60 feet long and 4 feet in diameter is cut into four equal pieces, what will be the surface area of each piece?

 

Answer Key

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Math