A cone of radius 10 cm is divided into two parts by drawing a plane through mid-point of its axis parallel to the base. Compare the volume of the two parts.

In the figure, from the top of a solid cone of height 12 cm and base radius 6 cm, a cone of height 4 cm is removed by a plane parallel to its base. Find the total surface area of the remaining solid (pi = 22/7, sqrt5=2.236) .

Draw a circle with centre O and radius 4 cm . Take a point P outside the circle at a distance of 7 cm from its centre. Draw two tangents to the circle from the point P.

Draw a circle of radius 1 cm . From a point P 2.2 cm apart from the centre of a circle, draw two tangents to the circle.

Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0 m apart on a horizontal table. What is the gravitational force and potential at the mid point of the line joining the centers of the spheres? Is an object placed at that point in equilibrium? If so, is the equilibrium stable or unstable?