Q:

The volume V of a cylindrical can is represented by the formula V=pir2 A cilindrical can has a volume of 1089 pi cubic centimeters and a height of 9 centimeters what is the radius of the can?Help​

Accepted Solution

A:
Answer:r =  (11√π)/πStep-by-step explanation:V = πr²h We are given V = 1089, and h = 9.  Plug them into the formula and simplify1089 = πr²(9)         121 = πr²          (divide by 9 on both sides)             121/π = r²     (divide by π on both sides)            √(121/π) = r     (take the square root of both sides)   Now simplify    √(121/π) (√121)/(√π)      11/√π            [11(√π)]/[(√π)(√π)]                 (11√π)/πso r =     (11√π)/π