Perimeter & Area

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width)

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What is the formula for the perimeter of a square?

Back

Perimeter = 4 × side length

Front

What is the formula for the area of a square?

Back

Area = side length × side length

Front

What is the formula for the circumference of a circle?

Back

Circumference = π × diameter or Circumference = 2π × radius

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × radius

Front

How do you find the area of a shaded region?

Back

Area of shaded region = Area of larger shape - Area of smaller shape

Front

What is the formula for the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height