Question

the radius of upper face of bucket is 21 cm . what is its curved surface area​

Answer 1

Answer:

It's curved surface is 2cm.

hope it helps you.

Answer 2

Answer:

Step-by-step explanation:

Step:1

Using the formula for area of circle

A=πr^2 ...where A=21..you can find the radius r...

Then the curve surface area is

=2πrL

So to calculate the curve surface area the length(L) of the bucket should be given..

Hope it helps