Formulas
What is the formula to find the area of a rectangle?
A = l x w
Find the perimeter of the rectangle with a length of 8cm and a width of 5 cm.
P = 26cm
Find the area of a rectangle that has a length of 6cm and a width of 5 cm.
A = 30 cm2
The classroom is getting new carpet. If the room has a length of 10 yds and a width of 6 yds. How much carpet will the room need?
The room will need 60 yd2 of carpet.
What do you call a square with a side length of one unit?
A unit square
What is the formula to find the area of a square?
A = s x s
OR
A = L x W
Find the perimeter of a square that has a side length of 12cm.
P = 48 cm
Find the area of a square with side length 7 in.
A = 49 in2
Billy walked around the park one time. The park is 50 feet long and 25 feet wide. How far did Billy walk?
150 feet
Area is measured in...
square units
How do you find the perimeter of a triangle?
Add up all the outside edges
Find the perimeter of a rectangle that is 4 ft long and 2 ft wide
P = 12 ft
Find the area of a rectangle with a length of 8 in and a width of 7 in
A = 56 in2
Mary needs to build a fence around her backyard. The length of her backyard is 5m and the width is 8m. If fencing costs $2 per meter, how much money will Mary spend on the fence?
$52
What are all the factors of 12?
1, 2, 3, 4, 6, 12
What does the s stand for in the formula to find the area of a square?
Side length
Find the perimeter of a square with a side length of 9m
P = 36m
Find the area of a square with a side length of 5 cm
A = 25 cm2
The guinea pig cage is 3 feet long by 2 feet wide. How much area does the guinea pig have inside the cage?
6 square feet
If a rectangle has an area of 42 cm2 and a length of 7 cm, what is the perimeter of the rectangle?
26 cm
What will this formula give you?
L + W + L + W =
The perimeter of a rectangle
Find the perimeter of a pentagon with side lengths that equal 8 in.
P= 40 in
Find the area of a rectangle with a length of 10 in and a width of 13 in
A = 130 in2
A square pizza box has an area of 64 in2. What is the length of one side of the pizza box?
8 in
True or False: The perimeter of a shape is always a bigger number than the area of a shape.
False