I'm re-doing a test for finals and I was working on this question, my teacher said to use radius since I originally did the diameter power of 2.

Shape: Cylinder | Height: 27 m | Diameter: 34 m
So the original equation; 3.14(pi) * 34^2 * 27 = 98055
My NEW equation; π * 17^2 * 27= 24513.85
Also, should I simplify the answer?
THANK YOU! ^^

3 answers

Agree with second equation. Did not check the math. I assume you were asked for the volume of the cylinder. What are your instructions as far as simplification?
Oops, yes, it was for volume, and there really were no rules for simplification so should I just leave it as it is?
If your math is correct, why not?