Math, asked by shonyaa, 1 year ago

QUESTION : The curved surface area of a cylinder is 2π ( y² - 7y + 12) and its radius is (y-3) . Find the height of the cylinder.

Answers

Answered by rohitrathee30
6
radius of cylinder=y-3
curved surface area of a cylinder=2π ( y² - 7y + 12)
2πrh=2π ( y² - 7y + 12)
(y-3)h=( y² - 7y + 12)
h=( y² - 7y + 12)/(y-3)
h= y²-4y-3y+12/y-3
h=y(y-4)-3(y-4)/y-3
h=(y-3)(y-4)/(y-3)
h=(y-4)
So, height=y-4
Similar questions