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1. Find the area of the semicircle.... 177 square inches 353 square inches

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1. Find the area of the semicircle.... 177 square inches 353 square inches
Online Update 1/17/12 7th/8th grade Do your best….Ask questions….Use your time wisely 
Chapter 7
Area of Parallelograms, Triangles, and Trapezoids
glencoe
1.
Find the area of the semicircle. (Use 3.14 for
A.
C.
177 square inches
88 square inches
.)
B.
D.
353 square inches
707 square inches
Hint
glencoe
2.
Pizzas are often described using their diameter. A 14-inch pizza has a
diameter of 14 inches. Find the area of a 14-inch pizza to the nearest square
inch.
A.
B.
C.
D.
about 616 square inches
about 254 square inches
about 154 square inches
about 140 square inches
Hint
glencoe
3.
A cube has how many faces?
A.
C.
8
6
B.
D.
10
4
Hint
glencoe
4.
The diagram shows the dimensions of a silo. What is the volume of the
grain that can be stored in the silo?
A.
C.
about 14,726 cubic feet
about 17,671 cubic feet
B.
D.
about 58,905 cubic feet
about 70,686 cubic feet
Hint
glencoe
5.
Find the surface area of a triangular prism whose bases are right triangles
with legs 9 feet and 12 feet and whose height is 14 feet.
A.
C.
612 square feet
558 square feet
B.
D.
444 square feet
486 square feet
Hint
glencoe
6.
Find the area of the trapezoid.
A.
C.
75 ft2
63 ft2
B.
D.
126 ft2
68 ft2
Hint
glencoe
7.
Find the area of a triangle whose base is 9.5 m and height is 6 m.
A.
C.
27 m2
14.25 m2
B.
D.
57 m2
28.5 m2
Hint
glencoe
8.
Name the figure shown.
A.
C.
Rectangular Pyramid
Rectangular Prism
B.
D.
Triangular Pyramid
Triangular Prism
Hint
glencoe
9.
How many cubic centimeters will fit into a rectangular prism with a length
of 12 centimeters, a width of 8 centimeters, and a height of 15 centimeters?
A.
B.
C.
D.
1,440 cubic centimeters
4,320 cubic centimeters
792 cubic centimeters
35 cubic centimeters
Hint
glencoe
10.
What is the volume of a cone with a diameter of 21
cm? Round to the nearest tenth.
A.
C.
11,980.7 cm3
3,993.6 cm3
B.
D.
cm and a height of 33
363.1 cm3
371.5 cm3
Hint
glencoe
11. What is the volume of a cone with a radius of 9.75 inches and a height of
11.2 inches rounded to the hundredths?
A.
C.
1,114.95 in3
114.35 in3
B.
D.
3,344.85 in3
933.05 in3
Hint
glencoe
12. Find the surface area of a triangular prism whose bases are right triangles
with legs 3 centimeters and 4 centimeters and whose height is 10
centimeters.
A.
C.
162 cm2
144 cm2
B.
D.
60 cm2
132 cm2
Hint
glencoe
13. How many significant digits area in the number 0.009?
A.
3
B.
4
C.
2
D.
1
Hint
glencoe
14. Find the area of the shaded area if each square represents 4 square inches.
The shaded area is 132 inches by 2 inches.
A.
C.
66 square inches
360 square inches
B.
D.
264 square inches
192 square inches
Hint
glencoe
15. Find the area of the shaded area if each square represents 2.5 square
centimeters.
A.
C.
172.5 square centimeters
187.5 square centimeters
Hint
glencoe
16. Find the surface area of the square pyramid.
B.
D.
75 square centimeters
165 square centimeters
A.
C.
330 square centimeters
645 square centimeters
B.
D.
435 square centimeters
210 square centimeters
Hint
glencoe
17. Find the surface area of the cone. Round to the nearest tenth.
A.
C.
47.1 square meters
122.5 square meters
B.
D.
28.3 square meters
75.4 square meters
Hint
glencoe
18. Use the correct number of significant digits to find the area of the rectangle.
The rectangle is a 20 by 7 cm rectangle.
A.
C.
135.4 square centimeters
135.42 square centimeters
Chapter 7
Ratios and Proportions
B.
D.
135 square centimeters
140 square centimeters
glencoe
1.
Jennifer's hand measures 8 inches long. She is 5 feet 8 inches tall. Express
the ratio of the length of Jennifer's hand to her height in simplest form.
A.
B.
C.
D.
Hint
glencoe
2.
Marja bicycled 7 hours a day for 14 days. She traveled 294 miles. What is
her unit rate of travel per day?
A.
C.
21 miles per day
42 miles per day
B.
D.
2 miles per day
3 miles per day
Hint
glencoe
3.
Find p if p/4.5 = 9/27
A.
C.
2
1.5
B.
D.
3
2.5
Hint
glencoe
4.
Katie is on a hiking trip. She wants to go from Panther's Peak to Coyote
Caverns. On her map, the two sites are 4 inches apart and the scale is
1 inch = 0.5 mile. How far will she have to walk?
A.
C.
6 mi
4 mi
B.
D.
2 mi
8 mi
Hint
glencoe
5.
Express
A.
C.
as a percent. Round to the nearest tenth.
17.1%
15.2%
B.
D.
12.5%
33.3%
Hint
glencoe
6.
Which of the following is not reasonable?
A.
B.
C.
D.
The number of household microwaves today are 0.95% of the
microwaves in 1980.
The weight of a mouse is 0.60% the weight of a lion.
Last year's sales were 108% of this year's sales.
The cost of gasoline is 120% of last year's cost.
Hint
glencoe
7.
40 is what percent of 25?
A.
C.
16
160
B.
D.
10
62.5
Hint
glencoe
8.
During a college football game 8,400 people showed their spirit by wearing
the home team's colors. If 12,000 people attended the game, what percent of
the crowd wore the same colors?
A.
C.
80%
B.
70%
D.
65%
75%
Hint
glencoe
9.
Express 4 ounces per pound in simplest form.
A.
B.
C.
D.
4
Hint
glencoe
10. Which of the following is not a unit rate?
A.
C.
10 cm every 5 years
0.12 molecules per liter
B.
D.
65 miles per hour
3 incidents each day
Hint
glencoe
11.
Solve
A.
C.
=
6.125
32
.
B.
D.
8
16
Hint
glencoe
12. The scale on a blueprint is 1 cm for every 2 m. If the width of an arch is to
be 5 m, then how wide should it be drawn on the blueprint?
A.
C.
10 cm
2.5 m
B.
D.
0.2 cm
2.5 cm
Hint
glencoe
13.
Express
A.
C.
as a percent.
3%
60%
B.
D.
15%
5%
Hint
glencoe
14. Find 45% of 360.
A.
C.
162
0.08
B.
D.
198
180
Hint
glencoe
15. Find 30% of 300.
A.
C.
10
900
Hint
glencoe
16. Find 0.061 written as a percent.
B.
D.
100
90
A.
C.
0.61%
6.1%
B.
D.
61%
0.00061%
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