Area of a circle = (pi)r2 [Areacircle = pi time the radius squared.]
Volume of a cylinder = (pi)r2h [Volumecylinder = pi times the radius squared times the height.] (This applies to a right circular cylinder. :)
The circumference of a circle divided by its diameter is the value of pi and pi has a wide range of uses some of which are:- Finding the volume of a sphere Finding the surface area of a sphere Finding the volume of a cone Finding the volume of a cylinder Finding the area of a circle Finding the circumference of a circle
volume of cylinder pir2h
The volume of a cylinder is the cross-sectional area of the cylinder multiplied by its length. The perpendicular cross-section of a cylinder is a circle.
The formula for volume of a cylinder is (pi *r2 )h
That depends on what you already know about it. Formulas are just relationships between what you do know and what you don't know. I can't tell you what formula to use until you tell me what you know. Example: If you know the volume of the cylinder and its radius, then Height = Volume / pi xradius2 If you know the area of the cylinder and its radius, then Height = Area / 2 x pi x Radius If you know the volume and area of the cylinder, then Height = Area2 / 4 x pi x Volume
V= AxH where A is the area of the circle, and H is the height of the cylinder.
Volume of a cylinder = pi*radius2*height
Some of many examples are:- Finding the circumference of a circle Finding the area of a circle Finding the surface area of a sphere Finding the volume of a sphere Finding the surface area of a cylinder Finding the volume of a cylinder Finding the volume of a cone Finding the surface area of a cone
The formula for area of a circle is radius squared times pi. The formula for volume of a cylinder is radius squared times pi times height.
Because the volume of the cylinder is proportional to the cross sectional area of the cylinder. The cross sectional area is a circle and the area of a circle is pi*r2.
A semi-circle is a 2-dimensional figure and so cannot have a volume.
The circumference of a circle divided by its diameter is the value of pi and pi has a wide range of uses some of which are:- Finding the volume of a sphere Finding the surface area of a sphere Finding the volume of a cone Finding the volume of a cylinder Finding the area of a circle Finding the circumference of a circle
Archimedes.- Prashanth Svr
Some of the many applications that pi is used in geometry are as follows:- Finding the area of a circle Finding the circumference of a circle Finding the volume of a sphere Finding the surface area of a sphere Finding the surface area and volume of a cylinder Finding the volume of a cone
You cannot have a trapezoidal cylinder. That is like a square circle - an impossible shape.
pi x r2 x height
V = (pi * radius * radius * height)/2 ie. formula for the volume of a cylinder divided by 2