We calculate the area when there is a boundary enclosing a space, for example, the outer and inner surface area of objects like cylinders, cones, spheres, walls, or floors.
To determine the space taken up by substances such as water, milk, coffee, tea, etc., we need to calculate the volume of the object.
(a) In this situation, we will find the volume.
(b) In this situation, we will find the surface area.
(c) In this situation, we will find the volume.
Diameter of cylinder A is 7 cm, and the height is 14 cm. Diameter of cylinder B is 14 cm and height is 7 cm. Without doing any calculations can you suggest whose volume is greater Verify it by finding the volume of both the cylinders. Check whether the cylinder with greater volume also has greater surface area.
