Question

yin
radius is doubled
height is ved,
17. The radii of two cylinders of the same height are in the ratio 4:5, then find the ratio of their
volumes.
18.Find the area of the sheet required to make closed cylindrical vessel of height 1 m and
diameter 140 cm ​

Answer 1

Answer:

ok

Step-by-step explanation:

r

1

:r

2

=4:5

h

1

:h

2

=5:6

∴V

1

:V

2

=π×4×5:π×5

2

×6 (V=πr

2

h)

=π×16×5π×25×6

=80π:150π

=8:15