Mensuration — practice questions, page 7
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QuestionA cube of edge 12 cm is cut into small cubes of edge 3 cm. By what percent does the total surface…QuestionA sector of a circle of radius 21 cm with central angle 120° is folded into a cone. Find the…QuestionThe surface area of a sphere increases by 21%. By what percent does its volume increase?QuestionThe volume of a right circular cone is 9240 cm³ and its base radius is 21 cm. Find its curved…QuestionWater flows through a pipe of internal diameter 2 cm at 6 m per minute into a cylindrical tank of…QuestionWater in a canal 6 m wide and 1.5 m deep flows at 10 km/h. How much area will it irrigate in 30…
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