Show:
Area
Perimeter
Challenge
Challenge
Perimeter of Polygons
100
A square has a length of 7cm.  What is the area of this square?
49 square cm
100
A square has a length of 5 ft.  What is the perimeter of the square?
20 ft.
100

Miss Randels is building a shed to hold her tools and lawn mower. He wants an area of 24 square units, but she doesn’t want it to take up too much of his yard, so she wants to keep the perimeter small.  Use the whiteboard space to create two possible perimeters for a rectangle that has an area of 24 units squared.  

1x24

2x12

3x8 

4x6

100

Area of a square with sides 3 in

9 sq. in

100
A triangle has lengths of 4 cm, 3 cm, and 2 cm.   What is the perimeter of the triangle?
9 cm
200
A rectangle has a length of 5 inches and a width of 6 inches.  What is the area of this rectangle?
30 square inches
200
A rectangle has a length of 8 ft and a width of 4 ft.  What is the perimeter of the rectangle?
24 ft
200

Miss Randels is building a shed to hold her tools and lawn mower. He wants an area of 24 square units, but she doesn’t want it to take up too much of his yard, so she wants to keep the perimeter small.  What is the perimeter of your shape?

Answer Varies

200

Area of square with sides 5in

25 sq. in

200
A square has a length of 8 inches.  What is the perimeter of the square?
32 inches
300
A square has a perimeter of 36 m.  What is the area of the square?
81 square m
300
A square has an area of 16 sq inches.  What is the perimeter of the square?
16 inches
300

The Kuzemka family has 56  feet of fencing to build a dog pen for their new puppy. They know they want the pen to be rectangular, but they don’t know how long each side should be.

1x56

2x28

4x14

7x8

300

area of square sides 7 in

49 sq. in

300
A hexagon has a length of 7 m.  What is the perimeter of the hexagon. 
42 m
400
A rectangle has a perimeter of 12 yards and a length of 4 yards.  What is the area of the rectangle?
8 square yards
400
A rectangle has an area of 35 square cm and a length of 5 cm.  What is the perimeter of the rectangle?
24 cm
400

Mrs. Maxwell wants to create a garden that is 30 square feet. She wants to use the smallest amount of fencing in order to save money.  Use the grid space to create two possible perimeters for a rectangle that has an area of 30 units.  

1x30

2x15

3x10

5x6


400

Area of square sides 9 in

81 sq. in

400
A pentagon has a perimeter of 25 yards what is the length of one of its sides?
5 yards
500
What is the formula for finding the area of a rectangle?
Area = length X width
500
What is the formula for finding the perimeter of a rectangle?
Perimeter = 2 x (length + width) or Perimeter = length + length + width +width
500

Mrs. Reynolds wants to create a garden that is 30 square feet. She wants to use the smallest amount of fencing in order to save money.  Use the grid space to create two possible perimeters for a rectangle that has an area of 30 units.  Which has the smaller perimeter?

5x6

500

Area of square sides are 12 cm

144 sq. cm

500
An octagon has a perimeter of 48 ft.  What is the length of one of its sides? 
6 ft