Area of a circle = pi*radius2
Area of circle = pi*(radius)2
Volume = 4/3 * pi * radius * radius * radius Surface Area = 4 * pi * radius * radius
The area of a circle with a known radius can calculated using the following formula where r is the radius : A = Pi(r)2
Area of a circle = pi*radius squared
The formula for finding area or mass of a cylinder is pi x radius^2density=massxvolume
It depends on what information you have: its radius and slant height, radius and volume, radius and surface area, surface area and volume, etc.
c=TT R Given the area, the radius = square root (area / Pi). Given the circumference, the radius = circumf/ 2Pi.
2πrh, where 'r' is the radius and 'h' is the height.
pi*radius2 is the formula for finding the area of a circle.
It is the formula for finding the area of a circle which means: pi times radius squared
It is the formula used in finding the area of a circle which is pi times radius squared
The answer depends on what information you are given: volume and radius or diameter, or surface area and radius, etc.