Area is the amount of space inside a shape
Perimeter is the total distance around a shape
To find the area of a rectangle, multiply length by width
To find the perimeter of a rectangle, add all sides or use 2 × (length + width)
To find the area of a square, multiply side by side
To find the perimeter of a square, multiply side by 4
To find the area of a triangle, use 1/2 × base × height
To find the perimeter of a triangle, add all three sides
To find the area of a circle, use π × radius × radius
To find the circumference of a circle, use 2 × π × radius
Use the correct units for area and perimeter
Area uses square units
Perimeter uses linear units