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

To calculate the perimeter of a rectangle, add the lengths of all four sides or 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 perimeter of a square with each side measuring 4 inches?

Back

The perimeter is 16 inches (P = 4 sides x 4 inches = 16 inches).

Tags

CCSS.4.MD.A.3

Front

What is the formula for the perimeter of a square?

Back

The formula for the perimeter of a square is P = 4 x side length.

Tags

CCSS.4.MD.A.3

Front

If a shape has a perimeter of 20 cm and one side is 5 cm, what is the total length of the other three sides?

Back

The total length of the other three sides is 15 cm (20 cm - 5 cm = 15 cm).

Tags

CCSS.3.MD.D.8

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

Front

How do you find the missing side of a shape if you know the perimeter?

Back

Subtract the lengths of the known sides from the total perimeter to find the missing side.

Tags

CCSS.3.MD.D.8

Front

What is the perimeter of a rectangle that is 6 inches wide and 8 inches long?

Back

The perimeter is 28 inches (P = 2(6 + 8) = 28).

Tags

CCSS.4.MD.A.3

Front

If a shape has a perimeter of 18 inches and two sides are 6 inches each, what is the length of the other two sides?

Back

The total length of the other two sides is 6 inches (18 - 6 - 6 = 6).

Tags

CCSS.3.MD.D.8