3rd Grade: Area and Perimeter

Front

What is the perimeter of a shape?

Back

The perimeter is the distance around a shape.

Front

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

Back

The perimeter is 16 feet (P = 2(length + width) = 2(5 + 3) = 16).

Front

What is the formula to calculate the perimeter of a rectangle?

Back

P = 2(length + width)

Front

What is the area of a rectangle with a length of 4 feet and a width of 2 feet?

Back

The area is 8 square feet (A = length × width = 4 × 2 = 8).

Front

What is the difference between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around it.

Front

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

Back

The perimeter is 24 cm (P = 4 × side = 4 × 6 = 24).

Front

What is the area of a square with a side length of 3 inches?

Back

The area is 9 square inches (A = side × side = 3 × 3 = 9).

Front

What do you call the distance around an object?

Back

The distance around an object is called the perimeter.

Front

If a trapezoid has a perimeter of 19 feet and three sides measure 5 feet, 7 feet, and 2 feet, what is the length of the remaining side?

Back

The remaining side is 5 feet (19 - (5 + 7 + 2) = 5).

Front

True or False: The perimeter of a shape can be measured in square units.

Back

False. The perimeter is measured in linear units.