What is the formula for area?
A = length x width
What is the formula for perimeter?
= length + width + length + width
Correct or incorrect?
Length = 8cm
Width = 5cm
Answer = 36cm
Perimeter
What type of math do you use for a perimeter problem?
Addition
Tom has a poster with a length of 5m and a width of 3m. He wants to put a wooden frame around the poster. What length of wood will Tom need to frame his poster?
16m
Length: 11 meters Width: 7 meters Area: ?
77 square meters
Length: 7 meters
Width: 2 meters
Perimeter: ?
18 meters
Correct or incorrect?
Length = 10m
Width = 8m
Answer = 80m2
Area
What type of math do you use for an area problem?
Multiplication
Sally's pool table has an area of 36 square meters. The length of the pool table is 9 meters. What is the width of the pool table?
4 meters
Length: 9 metres Width: 8 metres Area: ?
72 square metres
Length: 10 meters Width: 9 meters Perimeter: ?
38 meters
Correct or incorrect
Length = 5cm
Width = 5cm
Answer = 25cm2
Area
What is the definition of perimeter?
The distance around the outside of a 2D shape
Ben is painting his room. He paints 3 walls. Each wall has dimensions of 8 x 4 centimeters. What is the total area that Ben has to paint?
96 square centimeters
Length: 12 metres Width: ? Area: 84 square metres
7 metres
Length: 12 meters Width: ? Perimeter: 42 meters
9 meters
Correct or incorrect
Length = 8cm
Width = 5cm
Perimeter = 36cm2
Incorrect
Perimeter = 36cm
What is the definition of area?
the space a 2D shape takes up
Mike is taking measurements of different rooms in his house. The bonus room has an area of 72 square meters. The length of the room is 8 meters. What is the perimeter of the room?
34 meters
Length: ? Width: 8 meters Area: 96 square metres
12 meters
Length: ? Width: 7 meters Perimeter: 38 meters
12 meters
Correct or incorrect
Length = 12m
Width = 4cm
Area= 48cm2
Correct
Hannah and Sally are planting gardens. Hannah's garden is 2 x 8 meters long. Sally's garden is 4 x 4 meters long. They want to put fencing around their gardens. Who will need more fencing?
Hannah