22. A rectangular sheet of paper 22 cm long and 12 cm
broad can be formed into the curved surface of a
cylinder in two ways. Find the difference between the
volumes of the two cylinders which can be formed.
Answers
Answer:
210cm^3
Step-by-step explanation:
length of the sheet = 22cm
breath =12cm
if it is folded length wire, then
circumference of so formed cylinder =22cm
therefore radius =C/ 22÷7=7/2cm
and height =12cm
volume =22/7r^2h
=462cm^2
if it is folded length wire then
circumference =12cm
radius =12/2×22/7=2/11cm
h=22cm
volume = 22/7r^2h
=252cm^3
difference volume =462-252=210cm^3
Answer:
210cm^3
Step-by-step explanation:
length of the sheet = 22cm
breath =12cm
if it is folded length wire, then
circumference of so formed cylinder =22cm
therefore radius =C/ 22÷7=7/2cm
and height =12cm
volume =22/7r^2h
=462cm^2
if it is folded length wire then
circumference =12cm
radius =12/2×22/7=2/11cm
h=22cm
volume = 22/7r^2h
=252cm^3
difference volume =462-252=210cm^3