Volume of a cylinder of radius r and heigth h is

Here h is 15 cm and r is 6 cm.
Answer:
18% decrease.
Step-by-step explanation:
What you do is you do 120-98 to get 22. You then put that over 120 to get .18333 this equal to 18% decrease or if you need it specifically 18.3%
An obtuse triangle is formed if there is an angle that has a measure of more than 90 degrees. You can determine if an obtuse angle is formed by two sides of a triangle if it meet this condition:
Let a and b be two sides of a triangle and c is the longest side:

So taking your given:

<

100 + 225 <

325 <

To get the smallest possible number, just get the square root of both sides:

<

18.03 < c
So your smallest possible whole number is 19