Javohn

I don't understand how u can get 3454 from mutiplying 1,100(3.14) When i did it i got 1414 The question: is 2(3.14r2 + 2(3.14)rh 2(3.14)(10)2 + 2(3.14)(10)(45) and when i got done with the promblem the answer in book said approximately 3454in2 when i got...

I don't understand how u can get 3454 from mutiplying 1,100(3.14)

I am wondering how to get the answer 4324 by multiplying 25.11 *3.14 I am constantly getting different answers the answer i am consistently getting is 8284.84 and 7944.54 I really need help!

I have (3.14) (19.36) (12) and i am trying to find out how to correctly multiply them Also i am trying to find value of cylinders

Thank you