A dome of the building in the form of hemisphere from inside it was a white wash of the cost of rupees a 49 8.96 if the cost of whitewashing is 2.00 per metre square find the inside surface area of the volume of the air inside the dome
Answers
Answered by
5
Answer:
CSA of Hemisphere =498.96/2
=249.48m2
Inside Surface Area2 πr 2 =498.96
r^2 =498.96 / 2π
r^2 =498.96x7 /2 x 22=79.38
r =v79.38
= 8.9m
vol.of air inside 2/3πr 3
2/3x22x8.9x8.9x8.9=1477m3
INSIDE surface area=249.48m2
Vol. of air inside = 1477m3
Similar questions