Question

total surface area of a cylinder of radius 7cm is 880cm² find the height and volume of the cylinder​

Answer 1

Answer:

radius=7 cm

total surface area =880cm²

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

880cm²=2×22/7×7(7+h)

880cm²=44(7+h)

880/44=(7+h)

20=(7+h)

20-7=h

13=h

now, the height is 13 cm

volume if cylinder=π r²h

=22/7×7×7×13

=22×7×13

=154×13

=2002cm³

and the volume of cylinder is 2002cm³