AnswersFL-1205040-MJ Grade 7 Mathematics B -GFArea of Polygons

Area of Polygons Answers

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A blackboard has an area of 28 ft2 and a perimeter of 22 ft. What are the dimensions of the board?

A
2 ft by 11 ft
B
2 ft by 14 ft
C
4 ft by 7 ft
D
7 ft by 7 ft
2
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Bruno is sewing a large rectangular tablecloth for a restaurant. He has 30 square feet of fabric, and the length of the table cloth needs to be 7.5 feet. What is the width of the tablecloth if he uses all of the fabric?

A
2 ft
B
4 ft
C
6 ft
D
8 ft
3

A square garden has a side length of 5 ft. What is the area of the garden?

A
5 feet squared
Option A
B
10 feet squared
Option B
C
20 feet squared
Option C
D
25 feet squared
Option D
4

What is the area of the triangle?

Question illustration
A
8.64 feet squared
Option A
B
10.8 feet squared
Option B
C
14.4 feet squared
Option C
D
17.28 feet squared
Option D
5

What is the area of the triangle?

Question illustration
A
6 square inches
B
square inches
Option B
C
10 square inches
D
12 square inches
6

A trapezoid has bases that measure 10 cm and 6 cm. The height of the figure is 15 cm. What is the area of the trapezoid?

A
60 centimeters squared
Option A
B
90 centimeters squared
Option B
C
120 centimeters squared
Option C
D
150 centimeters squared
Option D
7

What is the area of the parallelogram?

Question illustration
A
82 centimeters squared
Option A
B
300 centimeters squared
Option B
C
315 centimeters squared
Option C
D
420 centimeters squared
Option D
8

Bruno is sewing a large rectangular tablecloth for a restaurant. He has 30 square feet of fabric, and the length of the table cloth needs to be 7.5 feet. What is the width of the tablecloth if he uses all of the fabric?

A
2 ft
B
4 ft
C
6 ft
D
8 ft
9

If one side of a square notebook measures 20 cm, what is the area of the front cover of the notebook?

A
40 centimeters squared
Option A
B
80 centimeters squared
Option B
C
200 centimeters squared
Option C
D
400 centimeters squared
Option D
10

The standard size of a rectangular placemat is 14 inches by 16 inches. How much fabric is needed to make 6 standard placemats?

A
90 inches squared
Option A
B
224 inches squared
Option B
C
672 inches squared
Option C
D
1,344 inches squared
Option D
11

A blackboard has an area of 28 ft2 and a perimeter of 22 ft. What are the dimensions of the board?

A
2 ft by 11 ft
B
2 ft by 14 ft
C
4 ft by 7 ft
D
7 ft by 7 ft
12

The sides of a square bedroom measure 3.5 yards. If carpet costs $16 per square yard, how much will it cost to cover the floor?

A
$56
B
$98
C
$196
D
$224
13

A trapezoid has bases that measure 9 cm and 5 cm. The height of the figure is 4 cm. What is the area of the trapezoid?

A
28 centimeters squared
Option A
B
36 centimeters squared
Option B
C
45 centimeters squared
Option C
D
90 centimeters squared
Option D
14

What is the area of the triangle?

Question illustration
A
6 square inches
B
square inches
Option B
C
10 square inches
D
12 square inches
15

A tabletop has an area of 12 square feet and a perimeter of 16 ft. What are the dimensions of the table?

A
2 ft by 6 ft
B
2 ft by 8 ft
C
4 ft by 3 ft
D
4 ft by 4 ft
16

A square garden has a side length of 5 ft. What is the area of the garden?

A
5 feet squared
Option A
B
10 feet squared
Option B
C
20 feet squared
Option C
D
25 feet squared
Option D
17

What is the area of the parallelogram?

Question illustration
A
82 centimeters squared
Option A
B
300 centimeters squared
Option B
C
315 centimeters squared
Option C
D
420 centimeters squared
Option D
18

A trapezoid has bases that measure 10 cm and 6 cm. The height of the figure is 15 cm. What is the area of the trapezoid?

A
60 centimeters squared
Option A
B
90 centimeters squared
Option B
C
120 centimeters squared
Option C
D
150 centimeters squared
Option D

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