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Savitri had to make a model of a cylind...

Savitri had to make a model of a cylindrical kaleidoscope for her science project. She wanted to use chart paper to make the curved surface of the kaleidoscope. (see Fig 13.10). What would be the area of chart paper required by her, if she wanted to make a kaleidoscope of length 25cm with a 3.5cm radius?

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To find the area of chart paper required for Savitri's cylindrical kaleidoscope, we will calculate the curved surface area of the cylinder using the formula for the curved surface area of a cylinder. ### Step-by-Step Solution: 1. **Identify the given values:** - Radius (r) = 3.5 cm - Height (h) = 25 cm ...
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