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A standard refill tube is a cylinder of internal radius about 0.1 cm and ink length 10 cm. The ink volume is πr²h ≈ 3.14 × (0.1)² × 10 ≈ 0.314 cm³ (or ~0.3 mL). Ganita Manjari Part 2 Class 9 ...

class 9 ganita manjari part 2 exercise 14 solutionsnecessary measurements and make approximationsnew book ganita manjari part 2 class 9 chapter 14 page 145 question answervolume of ink in a new ball point pen
Kriti
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Consider changing dimensions from (l, w, h) to (l’, w’, h’). One valid example: an initial cuboid of dimensions 1 × 1 × 8 has V = 8 and SA = 34. Rescaling dimensions to 0.25 × 2 × 8 ...

class 9 ganita manjari part 2 exercise 14 solutionsdimension of a cuboid whose volumenew book ganita manjari part 2 class 9 chapter 14 page 145 question answerwhen its surface area is doubled