Area and Perimeter

Front

What is Area?

Back

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

Front

What is Perimeter?

Back

Perimeter is the total distance around a shape, calculated by adding the lengths of all its sides.

Front

How do you find the area of a rectangle?

Back

Multiply the length by the width (Area = length × width).

Front

How do you find the perimeter of a rectangle?

Back

Add the lengths of all four sides (Perimeter = 2 × (length + width)).

Front

What is the formula for the perimeter of a square?

Back

Perimeter = 4 × side length.

Front

If one side of a rectangle is 4cm and the other is 10cm, what is the area?

Back

Area = 4cm × 10cm = 40 square cm.

Front

If a square has a side length of 5m, what is its perimeter?

Back

Perimeter = 4 × 5m = 20m.

Front

What is the perimeter of a triangle with sides measuring 3cm, 4cm, and 5cm?

Back

Perimeter = 3cm + 4cm + 5cm = 12cm.

Front

If the perimeter of a rectangle is 30m and the length is 10m, what is the width?

Back

Width = (Perimeter/2) - length = (30m/2) - 10m = 5m.

Front

What is the area of a triangle?

Back

Area = 1/2 × base × height.