Question

The inner diameter of a circular well is 4.2m. It is 12 deep. Find its inner curved surface area

Answer 1

Answer:

Step-by-step explanation:

Radius= diameter/2

= 4.2/ 2

= 2.1m

Now, curved surface area of a cylinder=2πrh

= 2×22/7×2.1×12

= 528×0.3

= 158.4 cm.sq

Answer 2

Answer: yo! Here you go! Hope this helps ya,friend!

Step-by-step explanation:

since you havent mentioned the unit of height , let us take it as 12 m...