Question

10. The cost of painting the outer curved surface of a cylinder at 0.75 per cm² is 165. If the height of the cylinder is 1m, find the radius of its base.​

Answer 1

Step-by-step explanation:

The price is 165 for all the volume of cylinder

So price divided by each cm^2 of the volume 165/0.75 = 220

220 =pi* r^2 * h = 3.14 *r^2 *100

Solving for r =0.83

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