Question

if the diameter of a cylinder is 28cm and its height is 20 cm ,then its curved ​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

The C. S.A of the cylinder is 2πrh

1. So the diameter is 28cm
2. Then the radius will 14 cm
3. And the height will be 20cm

Now the formulla will

2*22/ 7 * 14 * 20........ And after solving this we have....... 40 * 44 and than.... The curved surface area is. 1760 cm²