ID: A
Date:
Class:
Grade 7 Review 6.3-6.4
Multiple Choice
Identtfu the letter of the choice that best completes the statement or answers the question.
. 1. Find the area of this trapezoid.
a.
2.
95 squ are units
b.
1
10 square units
c.
150 square units
d.
c.
I82 mm2
d. lI7 mm2
c.
40.25 emz
d.
190 square units
Find the area of this trapezoid.
18 mm
28 mm
a.
3.
b.
299 mrrt
598 mm2
Find the area of this trapezoid.
7.5 cm
11.5 cm
a.
4.
5.
66.5 cm2
b.
133 cmz
A trapezoidhas base lengths 6.5 cm and 18.6 cm and height
a.
138.05 cm2
b.
276.1 cm2
c.
ll
102.3 cm2
26.25 cm2
cm. Find its area.
d. 35.75 cm2
A trapezoidhas anarea of 153 cm2. The length of one base is 18 cm and the height is 9 cm. What is the
length of the other base?
d. 12 cm
c. 34 cm
b. 8cm
a. 16 cm
ID: A
6.
garden?
The diagram shows the dimensions of a vegetable garden. What is the area of the
11 m
16m
a.
7
.
256
b.
m2
c.
176 m2
d.
160 m2
d.
106 cm2
This is the net of a triangular prism. Find its area.
2cm
10 cm
a.
8.
216 m2
152
cm2
b.
146 cm2
c. ll2 cmz
The backy ard of a house is in the shape of this figure. Find the area of the backyard.
14m
19m
19m
42m
574 m2
798
1022 m2
9l
m2
ID: A
g.
This figure is formed by combining a rectangle and a ri ght angled triangle. Find the area of the figure.
8cm
18 cm
8cm
a.
168 cm2
12 cm
b.
192 cm2
96 cm2
d.
120 cm2
c.
44r 78
d.
48, 88
Find the perimeter and areaof this figure.
10.
3
a.
b.
37,74
41,82
Short Answer
11
c.
.
Find the areaof this trapezoid.
10 cm
ID: A
12.
13.
These figures are drawn on 1-cm grid paper. Find the area of each.
a)
b)
Suppose you cut a small square from a square piece of fabric as shown. What
will
be the area of the fabric
left?
1.5 m
6m
A landscaper is designing a flower garden in the
1,4.
shape of atrapezoid. She wants the shorter base to be 3 m
greater than the height and the longer base to be 5 m greater than the height. The height is 18 m. What will be
the area of the garden?
15.
The trapezoids are drawn on l-cm grid paper. Find the area of each trapezoid.
a)
b)
ID: A
ilem
16. Find the area of Figure A.
8cm
8cm
17.
This figure has sides of 2 different lengths. Each of the long side measures 14 cm and each of the short side
measures 7 cm. Find the area and perimeter of this figure. Explain your method.
14 cm
18.
The Flying Eagle Wild Bird and Game Preserve is shaped like a trapezoid. Find the area of the preserve in
km2. Explain your method.
6km
7km
ID: A
ade 7 Review 6.3-6.4
rllSw€r Section
MULTIPLE CHOICE
1. ANS:
C
PTS: I
DIF: Moderate
REF: 6.3 Area and Perimeter of a Trape zoid
STA: 7m38
TOP: Measurement
KEY: Knowledge and [Jnderstanding
2. ANS: A
PTS: I
DIF: Moderate
REF: 6.3 Are a and Perimeter of a Trape zoid
STA: 7m38
TOP: Measurement
KEY: Knowledge and lJnderstanding
3. ANS: A
PTS: I
DIF: Moderate
REF: 6.3 Are a and Perimeter of a Trapezoid
STA: 7m38
TOP: Measurement
KEY: Knowledge and Understanding
4. ANS: A
PTS: I
DIF: Moderate
REF: 6.3 Are a and Perimeter of a Trape zoid
STA: 7m38
TOP: Measurement
KEY: Knowledge and Understanding
5. ANS: A
PTS: I
DIF: Moderate
REF: 6.3 Are a and Perimeter of a Trapezoid
STA: 7m38
TOP: Measurement
KEY: Thinking
6. ANS: B
PTS:
DIF: Moderate REF: 6.4 Measuring Irregular Figures
STA: 7m30 | 7m36
TOP: Measurement
KEY: Application
7. ANS: A
PTS:
DIF: Moderate REF: 6.4 Measuring lrregular Figures
STA: 7m30 | 7m36
TOP: Measurement
KEY: Knowledge and [Jnderstanding
8. ANS: A
PTS:
DIF: Moderate REF: 6.4 Measuring Irregular Figures
STA: 7m30 | 7m36
TOP: Measurement
KEY: Application
9. ANS: A
PTS:
DIF: Moderate REF: 6.4 Measuring Irregular Figures
STA: 7m30 | 7m36
TOP: Measurement
KEY: Knowledge and understanding
10. ANS: C
PTS:
DIF: Moderate REF: 6.4 Measuring Irregular Figures
STA: 7m30 | 7m36
TOP: Measurement
KEY: Knowledge and Understanding
1
1
1
1
1
SHORTANSWER
11. ANS:
The area is 42 cm2
PTS: I
STA: 7m38
DIF:
Moderate
TOP:
Measurement
REF: 6.3 Are a and Perimeter of a Trape zoid
KEY: Knowledge and lJnderstanding
ID: A
12.
ANS:
a) L2 cm2
b)
10 cm2
DIF: Moderate
PTS: 1
STA: 7m30 | 7m36
KEY: Knowledge and Understanding
13.
REF:
TOP:
6.4 Measuring Irregular Figures
Measurement
REF:
TOP:
6.4 Measuring lrregular Figures
Measurement
REF:
6.3 Area and Perimeter of a Trapezoid
ANS:
33.75 m2
PTS:
STA:
1
DIF: Easy
7m30 | 7m36
KEY: Application
T4. ANS:
The area will be 3 96
PTS:
STA: 7m38
1
15.
m2.
DIF:
Moderate
TOP:
Measurement
KEY: Application
ANS:
a)
b)
The area is 16.5 cm2
The area is L4 cmz.
PTS:
STA: 7m38
1
DIF:
Moderate
TOP:
Measurement
REF: 6.3 Area and Perimeter of a Trapezoid
KEY: Knowledge and lJnderstanding
PROBLEM
T6. ANS:
The area of Figure A is 16 cmz.
PTS:
STA: 7m30
1
DIF: Moderate REF: 6.4 Measuring Irregular Figures
KEY: Application
TOP: Measurement
T7. ANS:
Methods may vary. Sample:
Divide the figure into 3 rectangles, each of which measures 14 cm x 7 cm, and 2 squares of side length 7 cm.
The area of the figure is 392 cmz.
The perimeter of the figure is 98 cm.
DIF: Difficult
PTS:
STA: 7m30 | 7m36
KEY: Communication
1
REF: 6.4 Measuring
TOP: Measurement
Irregular Figures
ID: A
ANS:
The areaof the preserve is 65 km2.
Methods may vary. Sample:
Divide the trapezoid into 2 triangles A and B of the same height.
6km
\
10km
\
A
7km
Area oftrape znid- areaof triangle A + areaoftriangle B
= 35 km2 + 30 kn2
- 65 km2
DIF: Difficult
PTS: 1
STA: 7m36 | 7m38
KEY: Communication
REF:
TOP:
6.3 Area and Perimeter of a Trapezoid
Measurement