Area
What is the formula for area?
A = length x width
or
A = L x W
What is the formula for perimeter?
Perimeter = length + length + width + width
or
P = L + L + W + W
Tom has a poster with a length of 5 feet and a width of 3 feet. What is the area of Tom's poster?
15 square feet
What type of math operating do you use to solve for perimeter?
Addition
Length: 6 meters
Width: 7 meters
Area: ?
42 square meters
Length: 7 feet
Width: 17 feet
Perimeter: ?
48 feet
Sally's pool has a length of 9 feet, and a width of 6 feet. What is the perimeter of her pool?
30 feet
What type of math operation do you use to solve for area?
Multiplication
Length: 10 meters
Width: 8 meters
Area: ?
80 square meters
Length: 5 feet
Width: 19 feet
Perimeter: ?
48 feet
Calvin is putting new carpet in his room, and needs to find out how much carpet he needs to buy. His room is 11 feet long, and 6 feet wide. What is the area of his room?
66 square feet
What is the definition of perimeter?
The space on the whole outside of an object.
Length: 9 meters
Width: ?
Area: 81 square meters
9 meters
Length: 15 feet
Width: ?
Perimeter: 56 feet
13 feet
Mike is taking the measurements of the family room in his house. The family room has an area of 72 square feet. The length of the room is 8 feet. What is the width of the room?
9 feet
What is the definition of area?
The whole space within an object.
Length: ?
Width: 8 meters
Area: 88 square meters
11 meters
Length: ?
Width: 17 feet
Perimeter: 78 feet
22 feet
Hannah is planting a garden, and she needs a fence around it. The perimeter of her garden is 72 feet. The length of her garden is 13 feet. What is the width of her garden?
23 feet
What is different about units of area compared to units of perimeter?
Units of area are "square units".
Units of perimeter is just the "unit"