Perimeter Rules
This measures the distance around the outside or border of an object
What is Perimeter?
One example that we can use Perimeter in the real world around us
Any example:
What is a picture, a yard/garden, a room, etc
Dimensions of a 2D shape
What are length and width?
The formula using multiplication to find the perimeter of a square
What is 4xW (or L)
What is label/ double the side/dimension that you know and add them together
The Length of a picture frame with a Perimeter of 28in and a Length of 4in
What is Width= 10in
What are dimensions?
The second step you do when you know the total perimeter and one dimension (Length or Width) and you doubled it already.
The width of a square bulletin board to add border around. It has a perimeter of 30ft and a length of 6ft
What is Length=9ft
The addition formula for finding perimeter of a square and rectangle
What is P=W+W+L+L
The perimeter to a square with a length of 5cm
What is P=20cm
The answer to the word problem below:
Ms. Syquio has a garden. She is putting a fence around it for the Spring. The garden has a length of 20in and a width of 12in. How much fencing does she need for her garden?
What is 64in of fence
True or False, do we measure perimeter in square units?
False, we do not use square units to measure perimeter
The Perimeter of a rectangle garden with a Width of 8ft and Length of 12ft.
What is P=40ft
The perimeter of a triangle with the dimensions of L=10cm, W=5cm, and L=12cm.
What is P=27cm