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/Volumes/102/GO00864_AM_R1/MIDDLE_SCHOOL_MATH/NATIONAL/ANCILLARY/...
NAME _____________________________________________ DATE __________________ PERIOD _________
Test, Form 3B
SCORE _________
Write the correct answer in the blank at the right of each
question.
1. Find the area of the parallelogram.
4 ft
7 ft
8 ft
1.
2. Find the base of a parallelogram with height 13.5 yards and
an area of 159.3 square yards.
3. A scrap of fabric has the dimensions
shown. What is the area of the scrap
of fabric? Round to the nearest tenth.
11.8 yd
15 in.
1
3.
138.8 in2
4. A wheat cracker is shaped like a triangle with a base of 50
millimeters and a height of 5.7 centimeters. What is the area of
the cracker in square centimeters? Round to the nearest tenth.
4.
14.3 cm2
5. A triangle has a base of 35 feet and an area of 630 square feet.
What is the height of the triangle?
5.
36 ft
6.
576 cm2
18 2 in.
Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.
2.
32 ft2
6. Michael’s placemat has the dimensions shown below. What is
the area of the placemat?
22 cm
18 cm
42 cm
7. Suppose the base and height of the parallelogram in Exercise 1
is multiplied by 4. What effect would this have on the area of
the parallelogram? Explain your reasoning.
8. The sides lengths of a triangle are 5 feet, 10 feet, and 13 feet.
Suppose the side lengths are multiplied by 5. Describe the
change in perimeter.
7.
The area of the new
figure is 512 ft2. This
is 16 times the
original area, 32 ft2.
512 ft2 ÷ 32 ft2 = 16
8.
The original
perimeter is
28 feet. The new
perimeter is
140 feet. This is 5
times the original.
28 × 5 = 140
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Course 1 • Chapter 9 Area
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/Volumes/102/GO00864_AM_R1/MIDDLE_SCHOOL_MATH/NATIONAL/ANCILLARY...
NAME _____________________________________________ DATE __________________ PERIOD _________
Test, Form 3B
SCORE _________
(continued)
9. The figure below shows the dimensions of the local dog park.
What is the area of the dog park?
13 ft
9 ft
5 ft
20 ft
166 ft2
9.
10. A parallelogram has an area of 120 square units. Its
perimeter is between 40 and 50 units. List two possible
dimensions for the parallelogram.
11. What is the area of the shaded region
in the figure at the right?
18 ft
Sample answers:
b = 15 units, h =
8 units; b =
10.
12 units, h = 10
units
16 ft
144 ft2
12. Find the height of a trapezoid given that it has an area of
1,395 square feet and the lengths of its bases are 35 feet and
58 feet.
12.
30 ft
13. Find the area of the figure below in square units.
13.
35.5 units2
8
7
6
5
4
3
2
1
O
y
B
A
C
1 2 3 4 5 6 7 8x
14. A figure has vertices at A(3, 1), B(3, 7), and C(6, 1). Graph
the figure and classify it. Then find the area.
2
14. triangle; 9 units
15. A rectangle has vertices W(2, 3), X(2, 6), Y(7, 6), and Z(7, 3).
Describe how to find the side lengths of the rectangle without
graphing.
Sample answer: Subtract
the y-coordinates to find
the lengths of the vertical
sides and subtract the
x-coordinates to find the
lengths of the horizontal
15. sides.
216
Course 1 • Chapter 9 Area
P rinter P DF
Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.
11.
8 ft