Question

the total surface area of a cylindrical piller is 924 sq.cm if its curved surface area is two-third of its total surface area find the radius of its base and volume

Answer 1

Answer:

total surface area of cylinder is

2πr(r+h)=924 =(equation 1)

given

the curved surface area is equal to two by third of total surface area

2πrh=2/3(2πr(r+h))

h=2r

putting this value in equation( 1)

Step-by-step explanation:

we get r=7

volume of the cylinder is

πr^h

=22/7*7*7*14

=2156

Answer 2

Answer:

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