if i have a cylinder with a radius of 5, and a height of 8, what is its surface area

It is 408.41 unit^2    Correct to 2 decimal place

Your teacher probably rounded pi off more than you did and that is why her/his answer is a little less acurate :)

Maybe from this you can work it out yourself :/

The circumference of the circle is the length of the rectangle.

i had already worked out the answer, but my teacher and i are having a debate on what the answer was. my answer was 408.41, and hers was 408.2. Which one is right?

if i have a cylinder with a radius of 5, and a height of 8, what is its surface area

see: http://web2.0calc.com/questions/if-i-have-a-cylinder-with-a-radius-of-5-and-a-height-of-8-what-is-its-surface-area-nbsp