Area and Perimeter

Front

What is the perimeter of a shape?

Back

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

Front

How do you find the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: Perimeter = 2(length + width).

Front

What is the area of a shape?

Back

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

Front

How do you find the area of a rectangle?

Back

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

Front

What do you need to measure to find the area of a room?

Back

You need to measure the length and width of the room.

Front

If a rectangle has a length of 10 units and a width of 5 units, what is its area?

Back

Area = 10 units × 5 units = 50 square units.

Front

If a triangle has sides measuring 5 cm, 7 cm, and 8 cm, what is its perimeter?

Back

Perimeter = 5 cm + 7 cm + 8 cm = 20 cm.

Front

What is the formula for the perimeter of a square?

Back

Perimeter = 4 × side length.

Front

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

Back

Perimeter = 4 × 4 units = 16 units.

Front

What is the difference between area and perimeter?

Back

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