Question

hi friends helpe plz.......

Answer 1

See the solution in picture

I hope it will help you

Pls mark as a brainlist

Answer 2

no.of coins x volume of coin(cylinder) = volume of cuboid

let y be the no.of coins
y X $\pi r^2h$ = lbh
y=$lbh$÷$\pi r^2h$
 =33 X 18 X 8 ÷ $\pi$ X 3X3 X0.2
 =4752 ÷5.6571
 =840.0