Area and Perimeter

Front

What is Perimeter?

Back

Perimeter is the total distance around the outside of a shape.

Front

How do you calculate the Perimeter of a rectangle?

Back

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

Front

What is Area?

Back

Area is the amount of space inside a shape.

Front

How do you calculate the Area of a rectangle?

Back

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

Front

What units are used to measure Area?

Back

Area is measured in square units, like square feet (sq ft) or square centimeters (cm²).

Front

What is the Perimeter of a square with each side measuring 5 cm?

Back

The Perimeter is 20 cm (P = 4 × side length).

Front

If a rectangle has a length of 10 cm and a width of 4 cm, what is its Area?

Back

The Area is 40 cm² (A = length × width = 10 × 4).

Front

What is the formula for finding the Perimeter of a triangle?

Back

Add the lengths of all three sides: P = side1 + side2 + side3.

Front

What is the Area of a triangle?

Back

Area = 1/2 × base × height.

Front

If a rectangle has an Area of 24 sq ft and a width of 4 ft, what is the length?

Back

The length is 6 ft (A = length × width, so length = A/width).