Area and Perimeter Flashcard 3rd Grade

Front

What is the perimeter of a rectangle?

Back

The perimeter is the total distance around the rectangle. To find it, add the lengths of all four sides.

Front

What is the area of a shape?

Back

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

Front

How do you calculate the perimeter of a square?

Back

To find the perimeter of a square, multiply the length of one side by 4.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What does 'perimeter' mean?

Back

Perimeter is the distance around a shape.

Front

What does 'area' mean?

Back

Area is the space inside a shape.

Front

If a rectangle has a length of 5 cm and a width of 3 cm, what is its perimeter?

Back

Perimeter = 2 × (length + width) = 2 × (5 + 3) = 16 cm.

Front

If a rectangle has a length of 4 units and a width of 2 units, what is its area?

Back

Area = length × width = 4 × 2 = 8 square units.

Front

What is the perimeter of a square with a side length of 5 cm?

Back

Perimeter = 4 × side length = 4 × 5 = 20 cm.

Front

What is the area of a square with a side length of 4 units?

Back

Area = side length × side length = 4 × 4 = 16 square units.