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Formulas
Perimeter of a Rectangle
Area of a Rectangle
Area of a Parallelogram
Area of a Parallelogram (advanced)
100

What is the perimeter formula for a Triangle?

A= 1/2 x b x h

100

A rectangle has a length of 8 cm and a width of 5 cm. What is the perimeter of this rectangle?

26cm

100

A rectangle has a length of 8 inches and a width of 5 inches. What is the area of this rectangle?

40 inches squared

100
A parallelogram has a base of 6 feet and a height of 4 feet. What is the area of this parallelogram?
A = Base x Height A = (6)(4) A = 24 feet squared
100

A parallelogram has a base of 9 meters and height of 6 meters. What is the area of the parallelogram?

A = bxh = 9x6 = 54 meters squared

200

What is the area formula for a rectangle?

Area = b x h

200

A rectangle has a length of 18 cm and a width of 13 cm. What is the perimeter of this rectangle?

62 cm

200

A rectangle has a length of 18 cm and a width of 13 cm. What is the area of this rectangle?

234 cm

200
A parallelogram has a base of 14 feet and a height of 7 feet. What is the area of this parallelogram?
A = bh A = (14)(7) A = 98 feet squared
200

A parallelogram has a base of 24 km and a height of 14 km. What is the area?

A = bxh = 24 X 14 = 336 km2

300

What is the area formula for a parallelogram?

Area = base x height A = bh

300

A rectangle has a length of 8.6 m and a width of 5 m. What is the perimeter of this rectangle?

 27.2 m

300

A rectangle has a length of 8.6 m and a width of 5 m. What is the area of this rectangle?

43 meters squared

300
A parallelogram has a base of 7.8 feet and a height of 3 feet. What is the area of this parallelogram?
A = bh A = (7.8)(3) A = 23.4 feet squared
300

A parallelogram has a base of 3.5 cm and a height of 9 cm. What is the area?

A = bxh = 3.5 x 9 = 31.5cm2

400

What is the formula for perimeter of a square?

A=4 x length of a side

400

A rectangle has a length of 24.8 inches and a width of 12.78 inches. What is the perimeter of this rectangle?

p = 2L + 2W p = 2(24.8) + 2(12.78) p = 49.6 + 25.56 p = 75.16 inches

400

A rectangle has a length of 24.8 inches and a width of 12.78 inches. What is the area of this rectangle?

316.944

400
A parallelogram has a base of 13.8 yards and a height of 4.2 yards. What is the area of this parallelogram?
A = bh A = (13.8)(4.2) A = 57.96 square yards
400

A parallelogram has a base of 152 mm and a height of 111 mm. What is the area?

A = bxh = 152x111=16 872mm2

500

What is the formula for area of a rhombus?

A = 1/2 x d1 x d2

500

A rectangle has an area of 24 square cm and a length of 8 cm. What is the perimeter of this rectangle? **Hint: calculate the width first, and then calculate the perimeter.

22 cm

500

A rectangle has an area of 54 inches squared and a width of 6 inches. What is the length of the rectangle? (base)

A = LW 54 = L(6) solve for the variable 9 inches = L

500
A parallelogram has an area of 45 square inches and a base of 5 inches. What is the height of this parallelogram?
A = bh 45 = (5)h 9 inches = h
500

The base of a parallelogram is 123mm and the height is 42cm. What is the area? 

A = bxh = 123x420=51 660mm2