Area
Perimeter
Area AND Perimeter
Area and Perimeter
Formulae
100

l = 4 cm

w = 8 cm

32 square cm

100

l = 1 ft

w = 2 ft

P = 6 ft

100

Find the area and perimeter of a square with 5 inch sides.

A = 25 square in

P = 20 in

100

What is the equation for perimeter?

P = l + w+ l + w

P = 2l + 2w

100

What is the formula for the circumference of a circle?

C = 2(pi)(r)

or

C = pi x d

200

l = 8 ft

w = 7 ft

A = 56 square ft

200

l = 6 mm

w = 2 mm

P = 16 mm

200

Find the area and perimeter of a rectangle if the length is 8 in and the width is 11 in.

A = 88 square in

P = 36 in

200

How do you find the area? (include the equation)

Multiply length times width.

A = l x w

200

What is the formula of the area of a semi-circle?

A(semi-circle)= 1/2 (pi)(r2)

300

Find the area of a square with a side length of 5 cm.

A = 25 square cm

300

Find the perimeter of a square with 7 inch sides.

P = 28 in

300

Find the area and perimeter of a square if the sides are 10 ft.

A = 100 square feet

P = 40 ft

300

The perimeter of a square is 48 in.

What do the sides measure?

All 4 sides measure 12 in.

300

What is the formula of the Perimeter of a semi-circle, in simplest form?

Perimeter = Diameter + 1/2(pi)(diameter)

or

Perimeter = Diameter + (pi x r)

400

Find the total area of the two different rectangles:

1. l = 3 ft      w = 4 ft  and 

2. l = 4 ft      w = 4 ft

A = 28 square ft

400

Find the total perimeter of these two figures:

1. Rectangle: l = 2 in w = 5 in

2. Rectangle: l = 3 in  w = 1 in

P = 22 in

400

Find the perimeter and area of a rectangle with sides 12 in and 7 in.

A= 84 square inch

P= 38 in

400

The area is 28 in.

The length is 7 inches.

What is the width?

The width is 4 in.

400

What is the area of a the composite figure formed by a square and a rectangle?

Area = s+ (l x w)

500

Find the total area of these two figures:

1. Square: Sides = 2 in  and

2. Rectangle: l = 2 in   w = 4 in

A = 12 square in

500

Find the perimeter of these two figures:

1. Rectangle: l = 5 yd  w = 6 yd

2. Square: s = 9 yd

P = 58 yd

500

Find the perimeter and area of a rectangle with sides 20 in and 12 in.

A = 240 square in

P = 64 in

500

The perimeter is 36 in.

The length is 10 in.

What is the width?

The width is 8 in.

500

What is the Area of a composite figure formed by a semi-circle and a triangle?

A = 1/2(base x height) + 1/2 (pi x r2)