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CHAPTER AT A GLANCE
Surface Areas and Volumes
•Unit: Mensuration
•Board weightage: Mensuration (this chapter together with Areas Related to Circles) carries about 10 marks out of 80; this chapter usually gives one 3-mark or 5-mark question on a combination of solids (please check the latest sample paper)
•This textbook edition covers: surface area and volume of a combination of two basic solids (cuboid, cylinder, cone, sphere, hemisphere). Conversion of one solid into another and the frustum of a cone are not separate sections in this edition, although the idea that volume remains the same is used in one exercise question.
•Most scoring part: choosing the correct surfaces to add or subtract
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