Area and Perimeter

Front

What is Area?

Back

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

Front

What is Perimeter?

Back

Perimeter is the total distance around the outside of a two-dimensional shape, measured in linear units.

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

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

Back

Area = 10 cm × 5 cm = 50 cm².

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its perimeter?

Back

Perimeter = 2 × (10 cm + 5 cm) = 30 cm.

Front

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

Back

Area = side × side = 4 cm × 4 cm = 16 cm².

Front

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

Back

Perimeter = 4 × side = 4 × 4 cm = 16 cm.

Front

If a piece of fabric is 3 cm wide and has an area of 24 cm², how long is it?

Back

Length = Area ÷ Width = 24 cm² ÷ 3 cm = 8 cm.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.