Question

22 Swara 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 25 cm with a 3.5 cm
radius? You may take it = 22 17 ..
a​

Answer 1

Answer:

550cm²

Step-by-step explanation:

Curve suface area =2πrh =2×22/7×3.5×25=550cm²