Model Perimeter 10.2

Front

What is perimeter?

Back

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

Front

How do you find the perimeter of a rectangle?

Back

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

Front

If each unit is 1 foot, what is the perimeter of a shape with sides measuring 5 feet, 5 feet, 3 feet, and 3 feet?

Back

16 feet.

Front

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

Back

16 units (P = 4 x side length).

Front

If a shape has a perimeter of 20 feet, what could be the lengths of its sides?

Back

Possible lengths could be 5 feet, 5 feet, 5 feet, and 5 feet.

Front

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

Back

12 feet.

Front

How do you calculate the perimeter of a polygon?

Back

Add the lengths of all its sides.

Front

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

Back

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

Front

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

Back

10 inches.

Front

If a shape has a perimeter of 14 units, what could be the lengths of its sides?

Back

Possible lengths could be 4 units, 4 units, and 6 units.