Perimeter and Area

Front

What is the definition of 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 definition of area?

Back

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: Area = length × width.

Front

What is the area of a rectangle with a length of 5 units and a width of 4 units?

Back

20 square units.

Front

What is the perimeter of a rectangle with a length of 5 units and a width of 4 units?

Back

18 units.

Front

What is the formula for the area of a square?

Back

Area = side × side.

Front

What is the perimeter of a square with a side length of 6 units?

Back

24 units.

Front

If a rectangle has an area of 30 square units and a width of 5 units, what is its length?

Back

6 units.

Front

What is the area of a figure that has a length of 3 and a width of 7?

Back

21 square units.