Right Circular Cones

A line is used to join the vertex to the midpoint of a circular base is known as right circular cone. Right circular Cones are three dimensional surfaces having circular base and only one vertex or a Right Circular Cone having flat base, one side of a right circular cone is curved surface. It is not a polyhedral because it is having curved surface.
  
It is a right circular cone. Where ‘h’ denotes the height of a right circular cone and ‘r’ denotes the radius of the base and‘s’ is the slant height of a right circular cone.
If we want to find the volume of a right circular cone then we use the formula:
Volume of a right circular cone = 1/3 ⊼r²h,
Where ‘r’ is the radius and ‘h’ is the height of a right circular cone and the value of ‘⊼’ is 3.14.
Some formulas related to the right circular cone are given:
When we want to find the surface area of base then we use formula:
Surface area of base = ⊼ * r²,
Surface area of side = ⊼ * r * s,
Or Surface area of side = ⊼ * r * √ (r² + h²),
Volume of a cone = ⊼ * r² * (h / 3),
‘H’ is the height of a cone.
‘R’ is the radius of a cone.
‘S’ is the side length.
The flat part is known as base of a right circular cone. Its shape is like cone. If we rotate a triangle then a new shape is formed is also called cone and a triangle is said to be a right angled triangle and it can be rotated along the shortest side.
Now we see what are the properties of a cone?
Now total surface area of a right circular cone is:
TA = SA + ⊼r²,
Where ‘r’ denotes the radius the cone’s base and ‘SA’ is the cone’s face surface area.