Area and Perimeter of Compound Shapes

Front

What is the definition of Perimeter?

Back

The 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 definition of Area?

Back

The area is the amount of space inside a shape, measured in square units.

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width: A = length × width.

Front

What is the formula for the perimeter of a square?

Back

P = 4 × side length.

Front

What is the formula for the area of a square?

Back

A = side length × side length.

Front

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

Back

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

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its area?

Back

A = 10 × 5 = 50 cm².

Front

What is the perimeter of a shape with sides measuring 3 m, 4 m, 5 m, and 6 m?

Back

P = 3 + 4 + 5 + 6 = 18 m.

Front

What is the area of a rectangle with a length of 12 m and a width of 8 m?

Back

A = 12 × 8 = 96 m².