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, 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

What is the formula for the area of a square?

Back

Area = side × side or Area = side².

Front

What is the formula for the perimeter of a square?

Back

Perimeter = 4 × side.

Front

If a square has a side length of 5 units, what is its area?

Back

Area = 5 × 5 = 25 sq. units.

Front

If a rectangle has a length of 8 units and a width of 3 units, what is its perimeter?

Back

Perimeter = 2 × (8 + 3) = 22 units.

Front

What is the area of a triangle?

Back

Area = 1/2 × base × height.

Front

If a triangle has a base of 6 units and a height of 4 units, what is its area?

Back

Area = 1/2 × 6 × 4 = 12 sq. units.