Write the definitions of right circular cylinder , right circular cone , sphere and hemisphere
Answers
ANSWER :
DEFINITIONS :
Right circular cylinder :
A cylinder is a solid having two circular ends with a curved surface area. If the line segment joining the centres of base and top is perpendicular to the base , then it is called as right circular cylinder.
Right circular cone :
A cone is a geometrical shaped object with circle as base, having a vertex at the top. If the line segment joining the vertex to the centre of the base is perpendicular to the base, it is called right circular cone.
Sphere :
A sphere is a geometric object formed where the set of points are equidistant from the fixed point in the space. The fixed point is called centre of the sphere and the fixed distance is called radius of the sphere.
Hemisphere :
A plane through the centre of a sphere divides it into two equal parts , each half is called as a hemisphere.
