Mr. Sim’s yard has 4 sides.
• The distance around the yard is 176 feet.
• Three sides of his yard measure 48 feet, 37 feet, and 56 feet.
What is the length of the fourth side?
48+37+56= 141 feet
176-141= 35 feet
Area:
Perimeter:
Area: 4 x 5 = 20
Perimeter: 4+5+4+5 = 18
Find the area of the figure below.
Length:8 Width:12
96 square units
Some paint spilled on Amina’s rectangle before she could count all the squares. What is the area of Amina’s rectangle? Explain to Amina how you can find the area without counting all the squares.
5 x 3= 15
Amina can find the area of the rectangle by multiplying width times length.
A rectangular countertop is 3 feet long and 9 feet wide. What is the area and perimeter of the countertop?
3+9+3+9= 24 feet
Eugene is making a triangular garden. She wants to build a fence around it. She used a total of 76 feet of fencing. 2 of the side lengths were 19 feet and 31 feet. How long is the third side?
The third side is 26 feet
Michaela ordered a rug for her bedroom. The rug is 7 feet wide and 6 feet long. What is the area of her rug?
7ft x 6ft= 42 feet sq.
Juan has to mow a lawn that is 12 yards wide and 4 yards long. What is the area of the yard he has to mow?
12x4= 48 yards
What is the area of a rectangle with a perimeter of 28 feet and a length of 9 feet?
45 sq. feet
Susan is putting a fence around a new playground. She used 20 feet of fencing. What is one possible drawing of her playground? Include the length and width.
She could have a square garden with 5 feet on each side. Or she could have a 2 ft length and 10 ft width garden.
Eli has a garden shaped like a triangle with equal length sides. The perimeter of Eli’s garden is 18 feet. What is the length of one side of his garden?
P=18 feet
18/3= 6 feet
Area: Perimeter:
Area:
Perimeter:
Area: 7ft x 9ft= 63 sq feet
Perimeter: 9 +7 +9+7= 32 ft
Find the perimeter of the figure below.
L = 8 W= 12
8+12+8+12=40
Mia said that Figure Q and Figure R have equal areas and equal perimeters. She supported her thinking by saying that any two figures with the same area always have the same perimeter. Is she right?
NO
Figure Q:
Area= 3 x 4= 12 sq. feet
Perimeter = 3+4+3+4= 14 feet
Figure R
Area: 2 x 6 = 12 sq. feet
Perimeter: 2+6+2+6= 16 feet
Rosita is building a chicken coop for her backyard. She needs it to have an area of 45 sq feet. The length of the coop is 9 feet. What is the width?
45/9= 5 feet
Shazir is building a fence around his rectangular pasture. He used a total of 76 feet of fencing. One of the sides is 20 feet. What is the length of the other side?
20+20+18+18= 76
76-40= 36 feet
36/2=18
Tyler is putting a fence in his rectangular backyard. His backyard is 45 feet long and 37 feet wide. How many feet of fence will he need?
45+37+45+37= 164 feet
Chen is sewing curtains for a school theater. It has an area of 27 feet. It is 9 feet wide. How long are the curtains?
27 sq ft / 9 ft = 3 feet
(3 ft X 9 ft = 27 sq ft)
What is the area of a rectangle with a perimeter of 18 feet and a width of 4 feet?
20 square units
Each side of a square piece of tissue paper is 7 centimeters long. What is the area and perimeter of the tissue paper?
Area: 7x7= 49 centimeters sq.
Perimeter: 7+7+7+7= 28 centimeters
48/6= 8 feet
28-12=16 inches
A video game map has a total area of 18 square inches. What are possible dimensions of the map?
There are 2 answers for this question.
9 ft x 2 ft= 18 sq feet
3 ft x 6 ft = 18 sq feet
A movie poster has a length of 11 feet and a width of 6 feet. What is the perimeter of the poster?
11+6+11+6 = 34 feet
What is the perimeter of a rectangle with an area of 18 feet and a length of 6 feet?
18 feet
Ms. B is digging up dirt for a flower garden. She digs an area that is 5 ft by 3 ft. She will plant 2 flowers per square foot. How many flowers will she plant?
5 ft x 3 ft= 15 square feet.
2 X 15 = 30 flowers