3D Geometric Shapes

3D Geometric Shapes Full form of 3D is Three Dimension. Three dimension geometric shapes are the figures which has length, breadth and height. Examples of 3D geometric shapes: - Sphere Cylinder Cone Cuboid Cube 3D Shape Definition Examples Formula Sphere The solid generated by revolving a circular alumina about any of its diameters, is called the sphere. Football, volleyball, etc., Volume = 4/3 r^3 Surface area = 4 r^2 Cylinder The solid bounded by a circular curved surface and two identical bases. Circular pillars, circular pipes, circular pencils, measuring jars, road rollers and gas cylinder etc., Volume = r^2 h Curved surface area= 2 r h Total surface area= 2r(r + h) Cone The solid generated by the rotation of a right- angled triangle about one of the sides containing the right angle is called a right circular cone. Ice-cream cone, conical vessel, clowns cap, etc. Volume= (1/3) r^2 h Curved surface area=r( h^2 + r^2) = r l Total surface area= r (l + r) Cuboid A solid bounded by six rectangular faces is called a cuboid. Matchbox, chalk box, brick, tile, book, etc., Volume= l * b * h Diagonal=(l^2+b^2+h^2 ) Total surface area=2(lb+bh+lh) Lateral surface area=2 ( l + b) * h Cube A cuboid whose length, breadth and heights are all equal is called a cube. Dice, ice cubes, sugar cubes etc., Volume= a^3 Diagonal = 3 a Total surface area= 6 a^2 Lateral surface area= 4 a^2