Information about: Combination of solids Formation of Cube and Cuboid Frustum of cone and its surface area Combination of Cylinder & Cone Combination of Cube and hemisphere

6. A cube is a three-dimensional figure with six
equal square faces.
It is formed of six squares.

8. Faces are combination of rectangles (and
possibly, squares); all angles right angles

10. A cone sliced by a plane
parallel to base results in
Formation of two
separated parts
Frustum of a Cone

11. For Example: A drinking glass is in the shape of a
frustum of a cone of height 14 cm. The diameter of its
two circular ends are 4 cm and 2 cm. Find the capacity
of the glass.
Solution:Radius of lower end (r2)=2/2= 1cm
Height =14 cm
Radius of upper end (r1) = 4/2 = 2cm
Capacity of glass=
1
3
∗
22
7
∗ 14[22+12+(2)(1)]
=
308
3
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