Question

find the height and volume of a solid cylinder whose total surface area is 660 cm^2 and radius is 5 cm

Answer 1

Answer:

Step-by-step explanation:

given

area = 2 pi r(r+h)

or,660=2*22/7*5 (5+h)

or, 660*7=2*22*5 (5+h)

or, 4620= 220(5+h)

or, 4620/220 =5+h

or, 21-5 =h

or, height(h) = 16 cm

now,

volume = pi r²h

             =22/7*5²*16

             =22/7*25*16

            =22/7* 400

            = 1257.14cm³