Area of a circle: pi*radius^2
Circumference of a circle: 2*pi*radius or diameter*pi
Volume of a sphere: 4/3*pi*radius^3
Surface area of a sphere: 4*pi*radius^2
To convert from degrees to radians, multiply the number of degrees by (pi / 180). Pi is approximately 3.1416.
Pi = circumference/diameter
Area of a circle = pi*r2 Circumference of a circle = 2*pi*r or pi*d Volume of a sphere = 4/3*pi*r3 Surface area of a sphere = 4*pi*r2 Volume of a cone = 1/3*pi*r2*height Volume of a cylinder = pi*r2*height
Yes. Some examples of formulas that contain pi (∏) are: (area of a circle) = ∏r2 (Circumfrance of a circle) = ∏d
Formulas relating to circles
All around the world, because pi is used in many formulas.
They are: 2*pi*radius or as diameter*pi
Circumference of a circle = 2*pi*radius or diameter*pi Area of a circle - pi*radius2
πr2 2πr
u0/4
C= 2 times pi and C= pi times diameter C= 2 times pi and C= pi times diameter
C=Pi*D