the radius and height of a cylinder are in the ratio 7:2.If the volume of the cylinder is 8316cm^3,find the total surface area of the cylinder
Answers
Answered by
7
let height and radius be x
then height 2x radius 7x
volume = pie r square h
8316=22/7×7x×7x×2x
8316/22×7×2=x^3
27=x^3
×=3
height 2x =2 (3)=6
radius =7x=7 (3)=21
total surface area= pie r (r+h)
22/7×21(21+6)
66 (27)
1782
then height 2x radius 7x
volume = pie r square h
8316=22/7×7x×7x×2x
8316/22×7×2=x^3
27=x^3
×=3
height 2x =2 (3)=6
radius =7x=7 (3)=21
total surface area= pie r (r+h)
22/7×21(21+6)
66 (27)
1782
Answered by
17
image attached if like please thank ❤
Attachments:
Similar questions