Area perimeter fun

Area perimeter fun

Area and perimeter of a square and a rectangle

Area

Area means the space inside.

Formula to find the area of a square and a rectangle is the same.

Area = length x width ( l x w)

A rectangular price tag is 7 centimeters tall and 10 centimeters wide. What is its area?

Area = length x width

Length = 7 cm

Width = 10 cm

l x w = 7 x 10 = 70 square cm.

Always remember to put the unit. Unit of area is always written as square units

Each side of a square mirror is 6 feet long. What is the mirror's area?

Area = length x width

Here length = 6 feet

As it is a square, all sides will be equal and so width will be the same as the length

Area = l x w

6 x 6= 36 square feet.

Multiple Choice

A rectangular concrete patio is 10 meters wide and 14 meters long. What is its area?

• 140 m

• 1400 m

• 140 sq. m

• 1400 sq.m

Multiple Choice

Each side of a square plastic tarp is 11 meters long. What is the tarp's area?

• 111 square meters

• 121 square meters

• 111 meters

• 141 square meters

Perimeter

Perimeter is the distance or measurement around a shape.

Perimeter of a square = 4 S ( S stands for one side. Square has all 4 sides equal)

Perimeter of a rectangle= 2l + 2w ( l stands for length and w stands for width)

Each side of a square coffee shop is 7 meters long. What is the coffee shop's perimeter?

Perimeter of a square = 4 S

S here is 7 cm

4S = 4 x 7 = 28 cm

A rectangular folder is 13 inches long and 8 inches wide. What is its perimeter?

Perimeter of a rectangle = 2l + 2w

length is given as 13 inches

width is given as 8 inches

So 2l + 2w = (2 x 13) + (2x 8)

2 x 13 = 26

2 x 8 = 16

26 + 16 = 42inches

Multiple Choice

What will be the perimeter of a rectangular table that is 12 m long and 5 m wide?

• 60 m

• 17 m

• 34 m

Multiple Choice

Find the perimeter of a square frame which is 12 inches long. Click the option that shows your answer.

• 24 inches

• 48 inches

• 576 inches

The perimeter of a square piece of gold is 24 millimeters. How long is each side?

Perimeter of a square = 4S

4S is given as 24 millimeters

So S = 24/ 4 = 6 mm

Mike built a rectangular dog pen that is 21 feet long and has a perimeter of 78 feet. What is the width of Mike’s dog pen?

Perimeter of a rectangle = 2l + 2w

2l + 2w = 78 feet

Length is given as 21 feet

So 2x21 + 2w = 78 feet

42 + 2w = 78 feet

2w = 78 - 42 = 36 feet

2w= 36. So w = 36/2 = 18 feet

Multiple Choice

Gini plans to paint a wall. She measures its height and width. She finds that she needs enough paint to cover 8 square meters. What does 8 here represent?

• area

• perimeter

• length

Multiple Choice

Steve built a square hamster pen that has a perimeter of 240 centimeters. What is the length of one side of Steve's hamster pen?

• 120 cm

• 480cm

• 960cm

• 60cm

Multiple Choice

Milo wants to put a fence around the dog park near his house. He measures the sides and finds they are 7 m wide and 8m long. He multiplies 7×2, and 8×2 and finds he needs 30 m covered. Which measurement does 30 represent?

• area

• perimeter

• length

Multiple Choice

Talia is going to put carpet in her new house. She measures one side of her living room and finds it measures 17 meters.

Which measurement does 17 meters represent?

• area

• perimeter

• length

Multiple Choice

Jordan wants to create a rectangular border around his classroom bulletin board, and he has 30 meters of border.

Which of these dimensions will give Jordan the largest area?

• 12 m and 3m

• 10 m and 5 m

• 7 m and 8 m

Multiple Choice

Jack is building a square garden. Each side length measures 7 meters. Jack multiplies 7 x 7 to find the amount of space in his garden which is equal to 49 square meters.

Which measurement does 49 square meters represent?

• area

• perimeter

• length