Perimeter - Grade 4

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around the rectangle, 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

You can calculate the perimeter (P) of a rectangle using the formula: P = 2(l + w), where l is the length and w is the 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 a shape called?

Back

The distance around a shape is called the perimeter.

Front

If Joni ran around a rectangular field with a length of 65 meters and a width of 35 meters, how far did she run after 4 laps?

Back

Joni ran 800 meters (Perimeter = 2(65 + 35) = 200 meters; 200 x 4 = 800 meters).

Tags

CCSS.3.MD.D.8

Front

What is the formula for the perimeter of a rectangle?

Back

The formula for the perimeter of a rectangle is P = 2l + 2w.

Tags

CCSS.4.MD.A.3

Front

Which formula cannot be used to calculate the perimeter of a rectangle?

Back

P = l + w (this formula is incorrect for calculating perimeter).

Tags

CCSS.4.MD.A.3

Front

A book has a length of 6 cm and a width of 9 cm. What is the perimeter?

Back

The perimeter is 30 cm (P = 2(6 + 9) = 30).

Tags

CCSS.3.MD.D.8

Front

If a rectangle has a perimeter of 24 cm and a width of 4 cm, what is its length?

Back

The length is 8 cm (P = 2(l + w) => 24 = 2(l + 4) => l = 8).

Tags

CCSS.4.MD.A.3

Front

What is the width of a rectangle if its length is 12 cm and its perimeter is 40 cm?

Back

The width is 8 cm (P = 2(l + w) => 40 = 2(12 + w) => w = 8).

Tags

CCSS.3.MD.D.8