Verified answer

Answer:

first of all we will find the radius of the cylinder

given, height of the cylinder= 15 CM

curved surface area of cylinder=660 CM square

curved surface area of cylinder =2π RH rearranging the values we get

2 x 22/7 x r x 15 = 660 centimetre square

r= 660 x 7/2 x 22 x 15

r=7

total surface area of cylinder=2πr(r+h)

again rearranging the value we get

2 x 22/7 x 7 (15+7)

44 x 22

968 centimetre square

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