Question

the volume of cylinder is 3 not 8 centimetre cube the radius of its base is 3.5 centimetres find its curved surface area and total surface area​

Answer 1

308 = volume

308 = πr^2 h

308 = 22/7 * (3.5)^2 * h

3080/385 = h

8 = height

total surface area = 2πr(r + h)

= 2 * 22/7 * 3.5 (3.5 + 8)

= 253 cm²

lateral surface area = 2πrh

= 2* 22/7 * 3.5 * 8

= 176 cm²

I hope it will be helpful to you.