Question

- A cylinder has its height equal to its diameter. Find the ratio between its curved surface and the total surface​

Answer 1

Answer:

Ratio = 2:3

Step-by-step explanation:

Let the height of the cylinder be x.

Then, it diameter = x

radius = x/2

Curved surface area of cylinder= 2×pie × r × h

=2 × 22/7 × x/2 × x

= 22x^2/7

Total surface area of cylinder = 2 ×pie × r (r+h)

= 2 × 22/7 × x/2 (x/2 + x)

= 33x^2/7

Ratio: 22x^ 2/7 ÷ 33x^2 /7

= 2:3

Hope this answer will help you.... Have a nice day