AREA AND PERIMETER 3RD GRADE

Front

What is the perimeter?

Back

The perimeter is the total distance around the outside of a shape.

Front

What is the area?

Back

The area is the amount of space inside 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

How do you calculate the area of a rectangle?

Back

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

Front

What is the unit of measurement for area?

Back

Square units (e.g., square centimeters, square meters).

Front

What is the unit of measurement for perimeter?

Back

Linear units (e.g., centimeters, meters, feet).

Front

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

Back

15 square centimeters.

Front

If a square has a side length of 4 cm, what is its perimeter?

Back

16 centimeters.

Front

What is the formula for the area of a square?

Back

A = side × side or A = side².

Front

What is the formula for the perimeter of a square?

Back

P = 4 × side.