Word Problems
Rectangles
Irregular Shapes
Perimeter
Missing Side
100
Figure A has dimensions of 4 feet by 6 feet.
Figure B has dimensions of 3 feet by 8 feet.
Do the figures have the same perimeter?
No, Figure B has the larger perimeter.
100
What is the perimeter of a rectangle with a length of 3 in and a width of 2 in?
3 + 3 + 2 + 2 = 10 in.
100
What is the perimeter?
Write the equation and the answer on your whiteboard.
5 + 3 + 5 + 3 = 16 cm
100
A unit square is a square where each side is 1 unit. What is the perimeter?
4 units
100
An equilateral triangle has a perimeter of 21 units. What is the length?
7 units
200
Figure A has dimensions of 3 feet and 4 feet.
Figure B has a dimension of 6 feet and 1 foot.
Do the figures have the same perimeter?
Yes, the perimeters of both is 14 feet.
200
shape = rectangle
length = 5 in.
width = 4 in.
perimeter = 18 in.
Show the equation on your whiteboard.
5 + 5 + 4 + 4 = 18 in.
200
What is the perimeter?
4 + 2 + 2 + 4 + 2 + 6 = 20 cm
200
True or False: When writing the answer for perimeter, we use square units.
False.
200
The perimeter of a rectangle is 42 cm. The length of the rectangle is 13 cm. What is the width?
8 cm
(42 - 13 - 13 = 16
16 divided by 2 = 8)
300
Sofia's bedroom rug has a perimeter of 50 feet. The length of the rug is 20 feet. What is the width of the rug?
5 feet
(20 + 20 + 5 + 5 = 50)
300
shape = rectangle
length = 10 units
width = 7 units
perimeter = 34 units
Show the equation on your whiteboard.
10 + 10 + 7 + 7 = 34 units
300
What is the perimeter?
Show the equation and the answer.
3 + 2 + 4 + 3 + 7 + 5 = 24 cm
300
A square has a side length of 12 cm. What is the perimeter?
48 cm
(12 + 12 + 12 + 12)
300
The perimeter of a rectangle is 30 m. The length is 12 m. What is the width?
3 m
(30 - 12 - 12 = 6
6 divided by 2 = 3)
400
Mrs. Phillips measures the perimeter of a triangle where all sides are the same length. One side is 6 cm. What is the perimeter?
18 cm
(6 + 6 + 6 = 18)
400
shape = rectangle
length = 14 units
width = 12 units
Show the equation and the answer on your whiteboard.
14 + 14 + 12 + 12 = 52 units
400
What is the perimeter?
6 + 4 + 2 + 3 + 4 + 7 = 26 cm
400
A rectangle has a side length of 4 ft. The width is twice the size of the length. What is the perimeter?
24 feet
(4 + 4 + 8 + 8)
400
An irregular shape has side lengths of 13, 12, 7, and _____. The perimeter of the shape is 40. What is the length of the missing side?
8 units
(40 - 13 - 12 - 7 = 8)
500
A rectangular portrait is 4 feet high and 2 feet wide. It costs $2 per foot to put a metal frame around it. How much will the frame cost?
$24
(Perimeter is 4 + 4 + 2 + 2 = 12.
12 ft x $2 per foot = $24)
500
What is the perimeter of a rectangle which has a width of 8 and a length that is double the width?
48 units
(8 + 8 + 16 + 16)
500
What is the perimeter AND area of this shape?
Perimeter -
11 + 7 + 4 + 5 + 7 + 2 = 26 cm
Area -
(4 x 7) + (2 x 7) = 28 + 14 = 42 sq. cm.
500
An equilateral triangle has a side length of 6 in. What is the perimeter?
18 inches
(6 + 6 + 6)
500
5 cm
46 - 11 - 11 - 7 - 6 - 6 = 5