Perimeter
Find the perimeter of a rectangle with the following dimensions.
l = 4 cm
w = 8 cm
P = 24 cm
Find the area of a rectangle with the following dimensions.
l = 2 cm
w = 3 cm
A = 6 square cm
Find the perimeter and area of a rectangle with the following dimensions.
l = 4 cm
w = 3 cm
P = 14 cm
A = 12 square cm
What is the formula of finding area and perimeter?
Area: Length x Width or Base x Height
Perimeter: L x W x L x W
Atreyu is buying wood flooring to renovate his living room. The dimensions of his living room are 7 m long × 6 m wide. How many square meters of wood flooring should Atreyu buy?
Is this an area or perimeter question?
Solve.
A = 42 square m
Find the perimeter of a square with side lengths of 5 inches.
P = 20 in
Find the area of a square with side lengths of 7 inches.
A = 49 square in
Find the perimeter and area of a square with side lengths of 9 inches.
*Draw a model first!!!
P = 36 in
A = 81 square in
How do we find the missing side of a shape that gives you the total area of the shape and its length?
The formula would be the area divided by the length
Christian is buying wallpaper to create a border around his bedroom. His bedroom is 4 m long × 5 m wide. How many meters of wallpaper does he need?
Is this an Area or perimeter question?
Then solve.
P = 18 m
Find the perimeter of a rectangle with the following dimensions.
l = 14 yd
w = 7 yd
P = 42 yd
Find the area of a rectangle with the following dimensions.
l = 5 yd
w = 9 yd
A = 45 square yd
Find the perimeter and area of a rectangle with the following dimensions.
l = 3 yd
w = 15 yd
P = 36 yd
A = 45 square yd
How do we find the missing side of a shape using the perimeter and another side?
- Start off with the perimeter equation (L x W x L x W)
- Plug in the numbers you have and add them
- Take that number and subtract it from the perimeter
- divide your answer by 2
Miranda is retiling her kitchen floor. The kitchen has dimensions of 12 ft in length × 10 ft in width. How many square feet of tile does Jana need to buy?
Is this an area or perimeter question?
Then Solve.
A = 120 square feet
Find the perimeter of a rectangle with the following dimensions.
l = 13 ft
w = 12 ft
P = 50 ft
Find the area of a rectangle with the following dimensions.
l = 10 ft
w = 8 ft
A = 80 square ft
Find the perimeter and area of a rectangle with the following dimensions.
l = 14 ft
w = 7 ft
*Draw a model first!!!
P = 42 ft
A = 98 square ft
You have a box that has a total area of 60 cm. The length of this box is 12 cm. Please find the missing side (width) of this box.
Explain your work!
60 divided by 12
= 5
The missing side is 5 cm.
Dawson is buying a rug for his bedroom. He wants a rug less than 10 square feet. Should she buy a rug that measures 3 ft long × 3 ft wide or 4 ft long × 4 ft wide?
3 ft × 3 ft
9 square ft < 10 square ft
Find the total perimeter of the two rectangles.
Rectangle 1: l = 9 m w = 5 m
Rectangle 2: l = 13 m w = 4 m
P = 62 m
Find the total area of the two rectangles.
Rectangle 1: l = 7 m w = 3 m
Rectangle 2: l = 8 m w = 9 m
*Solve for Area for both rectangles then add both up!
A = 93 square m
7x3=21
8x9=72
72+21=93
Find the total perimeter and area of the two rectangles.
Rectangle 1: l = 3 m w = 4 m
Rectangle 2: l = 11 m w = 5 m
*don't forget to add up both perimeters and both areas!
P = 46 m
A = 67 square m
Your friend (Ryland) draws you a rectangle and gives you the perimeter of the shape, which is 70 cm, and the width of the rectangle, which is 15 cm. Please find the missing side (length) of the shape.
Draw a MODEL and Explain your work!
Add what you have:
W + W =
15+15 = 30
Subtract from the perimeter
70-30 = 40
Divide by 2
40 / 2= 20
The length of the missing side is 20 cm
Philong wants to buy a picture frame with a perimeter of 30 inches. Should he buy a frame that is 7 in long × 6 in wide or 7 in long × 8 in wide?
Explain your work
7 in × 8 in