Physicist182
Diameter of well =4.20m radius of well,r=4.20m/2=2.10m depth of well ,h=10m inner area of well=curved surface area of well +pi r^2 =2*22/7*2.10*10+22/7*2.10*2.10 solve it you will get area. cost of plastering=surface area*52 solve it you will get the cost
Answers & Comments
radius of well,r=4.20m/2=2.10m
depth of well ,h=10m
inner area of well=curved surface area of well +pi r^2
=2*22/7*2.10*10+22/7*2.10*2.10
solve it you will get area.
cost of plastering=surface area*52
solve it you will get the cost