Question

(13)Mukta 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. What would be the area of chart paper required by her, if she
Wanted to make kaleidoscope of length 25cm with 3.5cm radius?​

Answer 1

Step-by-step explanation:

Kaleidoscope is of cylindrical shape.

∴ Area of chart paper required = CSA of cylinder

= 2πrh

=$2× \frac{22}{7} ×3.5×25$

$= 550 {cm}^{2}$