Area and Perimeter

Area

1

Find the area of this rectangle

A = 4 x 2 = 8 square units

1

What is the formula for the area of a rectangle?

A = L x W

1

The area of a rectangle with length of 7in and width of 5 in is _____ .

A = 7 x 5 = 35 square in

1

Find the total area of the two rectangles:

1. B = 3ft      h = 4ft

2. B= 4ft      h= 4ft

A = 28 square ft

1. A = 3 x 4 = 12 square ft

2. A = 4 x 4 = 16 square ft

Total Area = 12 + 16 = 28 square ft

1

What is the area?

A = 66 square m

1. A = 5 X 10 = 50 square m

2. A = 4 x 4 = 16 square m

3. Total Area = 50 + 16 = 66 square m

Perimeter

1

What is the formula to find the perimeter of a square?

P = S + S + S + S

1

b = 6mm

h= 2mm

P = 16mm

P = 6 + 2 + 6 + 2 = 16mm

1

Square Side = 7cm

P = 28cm

P = 7 + 7 + 7 + 7 = 28cm

1

Find the total perimeter of these two figures:

1. Rectangle: b=2cm h=5cm

2. Rectangle: b=3cm  h=1cm

P = 22cm

1. P = 2 + 5 + 2 + 5 = 14cm

2. P = 3 + 1 + 3 + 1 = 8cm

3. Total Perimeter 14 + 8 = 22cm

1

Find the perimeter

P = 38m

P = 10 + 9 + 4 + 4 + 6 + 5 = 38m 

Area AND Perimeter

1

area and perimeter of a square with sides of length 12 cm

A= 100 square cm

A = 10 x 10 = 100 square cm

P= 40cm

P = 10 + 10 + 10 + 10 = 40cm

1

Find the area and perimeter of a rectangle if the length is 8cm and the width is 10cm 

A=80 square cm

A = 8 x 10 = 80 square cm

P= 44cm

p = 8 + 10 + 8 + 10 = 44cm

1

What two rectangles have the same area:

a) width = 2 ft, length = 10 ft

b) width = 5 ft, lenght = 5 ft

c) width = 4 ft, length = 5 ft

d) width = 5 ft, length = 8 ft

a and c are both rectangles with an area of
20 square ft.

1

Find the perimeter and area of a rectangle with sides 4 km and 8 km.

A= 32 square km

A = 4 x 8 = 32 square km

P= 64km

P = 4 + 8 + 4 + 8 = 24km

1

Find the perimeter and area of a rectangle with sides 20 cm and 10 cm.

A= 200 square cm

A = 20 x 10 = 200 square cm

P=60cm

P = 20 + 10 + 20 + 10 = 60cm

Area and Perimeter

1

The room needs new carpet. The room has an area of 30 square feet. One side length is 6 feet.

Which equation could you use to find the missing side length?

A) 30 x 6

B) 30 - 6

C) 30 / 6

D) 30 + 6

B) 30 - 6

1

How do you find the perimeter of a shape?

Adding all four sides together.

1

Find the area and perimeterFREE POINTS!

Area:

1. A = 4 x 3 = 12 square cm

2. A = 12 x 6 = 72 square cm

3. Total Area = 12 + 72 = 84 square cm

Perimeter:

P = 4 + 3 + 8 + 6 + 12 + 9 = 42cm

1

The perimeter of a garden with a width of 20 yds and a length of 45 yds is ____ yards.

P = 20 + 45 + 20 + 45 = 130 yards

1

The perimeter of a rectangle with length of 7in and width of 5in is _____ .

P = 7 + 5 + 7 + 5 = 24in