Question

the ratio between the curved surface area and the total surafce area of a right circular cylinder is 1:2. The ratio between the height and radius of the cylinder is.​

Answer 1

Answer:

I HOPE YOU UNDERSTAND

Step-by-step explanation:

Note: Curved surface area of cylinder =2πrh

Total surface area =2πrh+2πr

2

Given:

2πrh+2πr

2

2πrh

=

2

1

h+r

h

=

2

1

⇒2h=h+r

⇒h=r

r

h

=1

∴ required ratio h:r=1:1