Yes,it's the correct shape.
Answer: 
Step-by-step explanation:
1. To solve this problem you must use the following formula for calculate the volume of a right circular cylinder, which is shown below:

Where r is the radius and h is the height.
2. Now, you must substitute the values given in the problem. Therefore, you obtain the following result:


How many centimeters was it at first then I can help you
Change the numbers into improper fractions then subtract