Areas and perimeters

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

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

What is the area of a square with a side length of 4 cm?

Back

Area = 4 cm × 4 cm = 16 cm².

Front

What is the perimeter of a square with a side length of 4 cm?

Back

Perimeter = 4 × 4 cm = 16 cm.

Front

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

Back

Area = 5 cm × 3 cm = 15 cm².

Front

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

Back

Perimeter = 2 × (5 cm + 3 cm) = 16 cm.

Front

What is the area of a triangle?

Back

Area = 1/2 × base × height.

Front

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

Back

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