Question

if radius of base of a cylinder is 4.2 cm and height is 15 cm then its total surface area​

Answer 1

the total surface area is 19.2

Answer 2

Answer :

The total curved surface area for a cylinder is 2(π)r(r+h)

So, the Statement 2 is a standard result and is true.

Now the assertion has the values, so lets try to put them in place and see if result comes out to be correct.  

Total Surface Area =2(π)r(r+h)=2×  

7

22  

×14×44=3872 cm  

2  

So, we can conclude that both statements are true and reason is the correct explanation to the assertion.

Hence, option A is correct.

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