Area of a circle = pi*radius2
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The circumference of a circle is pi times its diameter, pi being approximately 3.14.
To find the perimeter you add and to find the area we multiply.
To find the relationship in width and area you can use the formula area/length = width. To find the area of a room you multiple the length by the width.
HOW TO FIND THE AREA OF A SQUAREmust x all sides
to find the surface area you have to first find the area of each part then add the areas together.