Question

The inner curved surface area of a well is 220 m square and radius of its base is 5 m find its height

Answer 1

Given, Radius of well = 5 m.
C. S. A. of well = 220 m.
To find:- The height of the well.

Solution:- C. S. A. of well = 2*pi*r*h
=> 220 = 2*22/7*5*h
=> 220 = 220/7 * h
=> h/7 = 1
=> h = 7 m.

Answer 2

2pirh=220
pi=22/7

r=5
so, h=(200×7)/22×2×5=done