Perimeter

Front

What is Perimeter?

Back

Perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: Perimeter = 2(length + width).

Tags

CCSS.4.MD.A.3

Front

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

Back

Perimeter = 2(10 + 5) = 30 units.

Tags

CCSS.4.MD.A.3

Front

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

Back

Perimeter = 4 sides x 4 inches = 16 inches.

Tags

CCSS.4.MD.A.3

Front

What is the formula for the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3.

Tags

CCSS.3.MD.D.8

Front

If a triangle has sides measuring 3 inches, 4 inches, and 5 inches, what is its perimeter?

Back

Perimeter = 3 + 4 + 5 = 12 inches.

Tags

CCSS.3.MD.D.8

Front

What is the perimeter of a shape with sides measuring 2 inches, 3 inches, and 5 inches?

Back

Perimeter = 2 + 3 + 5 = 10 inches.

Tags

CCSS.3.MD.D.8

Front

If the perimeter of a rectangle is 20 feet and the length is 6 feet, what is the width?

Back

Width = (Perimeter/2) - Length = (20/2) - 6 = 4 feet.

Tags

CCSS.4.MD.A.3

Front

What is the perimeter of a fence that is 15 feet long and 10 feet wide?

Back

Perimeter = 2(15 + 10) = 50 feet.

Tags

CCSS.4.MD.A.3

Front

What is the missing length if the perimeter is 42 inches and the other sides are 12 inches, 7 inches, and 21 inches?

Back

Missing length = 42 - (12 + 7 + 21) = 2 inches.

Tags

CCSS.3.MD.D.8