Question

the volume of a right circular cylinder is 448 pi cm2 and height is 7cm . find the lateral surface area and total surface area

Answer 1

lateral surface area = 2 pi r h = 448 pi =>2*r*7,=448. =>2*r= 448/7. =>r=64/2=>32cm
therefore lateral surface area = 2pie r h
2*22/7*32*7
=>1408cm2
total surface area = 2 pie r(h+R)
2*22/7*32(7+32)
7844cm2

Answer 2

hey friend, you can use this answer. This is correct one