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Mathematics (Syllabus D) · May / June 2020 · Paper 11 · Question 24

4024

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[Curved surface area of a cone rl r = ] y 42 15 28 The diagram shows a cone and a cylinder. The cone has radius 28 cm and slant height y cm. The cylinder has radius 15 cm and height 42 cm. The curved surface area of the cone and the cylinder are equal. Find the value of y. y = [3]

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