Finding Perimeter of Polygons

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around it, calculated by adding the lengths of all four sides.

Tags

CCSS.4.MD.A.3

Front

How do you calculate the perimeter of a rectangle?

Back

To calculate the perimeter of a rectangle, use the formula: P = 2(length + width).

Tags

CCSS.4.MD.A.3

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its perimeter?

Back

The perimeter is 30 cm (P = 2(10 + 5) = 30).

Tags

CCSS.4.MD.A.3

Front

What is the distance around an object called?

Back

The distance around an object is called the perimeter.

Front

Kendra is helping her teacher put chalk around the perimeter of the school field. The field is a rectangle with two sides measuring 100 feet and two sides measuring 75 feet. What is the perimeter of the field?

Back

The perimeter is 350 feet.

Tags

CCSS.3.MD.D.8

Front

What is the perimeter of a rectangle with a length of 8 cm and a width of 3 cm?

Back

The perimeter is 22 cm.

Tags

CCSS.4.MD.A.3

Front

Mrs. Horne wants to build a fence around her backyard. The length of her yard is 40 feet and the width of her yard is 5 feet less. How many feet of fencing does she need for the whole fence?

Back

She needs 150 feet of fencing.

Tags

CCSS.4.MD.A.2

Front

What is the perimeter of a square with each side measuring 4 cm?

Back

The perimeter is 16 cm (P = 4 x 4 = 16).

Tags

CCSS.4.MD.A.3

Front

If a rectangle has a length of 12 m and a width of 7 m, what is its perimeter?

Back

The perimeter is 38 m (P = 2(12 + 7) = 38).

Tags

CCSS.4.MD.A.3

Front

What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?

Back

The perimeter is 12 cm (3 + 4 + 5 = 12).

Tags

CCSS.3.MD.D.8