Area and Perimeter

Front

What is the 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 formula for the perimeter of a square?

Back

P = 4 × side length.

Front

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

Back

P = 2(5 + 3) = 16 cm.

Front

What is area?

Back

Area is the amount of space inside a shape.

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 area of a square?

Back

A = side length × side length.

Front

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

Back

A = 4 × 4 = 16 cm².

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 shape has a perimeter of 20 cm, what could be its dimensions?

Back

Possible dimensions could be 5 cm by 5 cm (square) or 10 cm by 0 cm (not a valid rectangle).