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: P = 2(length + width).

Front

What is the perimeter of a rectangle with a length of 10 units and a width of 5 units?

Back

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

Front

What is the perimeter of a square?

Back

The perimeter of a square is 4 times the length of one side: P = 4 × side.

Front

If one side of a square is 6 cm, what is its perimeter?

Back

P = 4 × 6 = 24 cm.

Front

What is the perimeter of a triangle?

Back

Add the lengths of all three sides: P = side1 + side2 + side3.

Front

If a triangle has sides of 3 cm, 4 cm, and 5 cm, what is its perimeter?

Back

P = 3 + 4 + 5 = 12 cm.

Front

What is the perimeter of a trapezoid?

Back

Add the lengths of all four sides.

Front

If a trapezoid has sides of 5 cm, 7 cm, 4 cm, and 6 cm, what is its perimeter?

Back

P = 5 + 7 + 4 + 6 = 22 cm.

Front

What is the perimeter of a parallelogram?

Back

P = 2(base + height).