Question

Answer this ques and prove that u r brainliest

Answer 1

Answer:

Step-by-step explanation:

Let R of cylinder and hemisphere = 2/6 h = h/3

height of cylinder = h - h/3 = 2/3 h

Volume of air in building = Vol of dome + Vol of cylinder

LHS :- 67 X 21 + 1/21 = 1408/21

RHS :- 2/3 π R³ + π R² H

= 2/3 X π X h/3³ + π x h/3² 2/3h

= 8/81 π h³

LHS = RHS

1408/21 = 8/81 π h³

1408 x 81/ 21 x8 = π h³

176 x 27/ 7 = 22/7 h³

h³ = 216

h = 6

Thank u along with u i learnt this sum