In function hall 15 cylindrical pillars . The radius of each pillar is 18 cm and height 3cm find the total cost of painting LSA of cylinder of all pillars at the rate of ₹0.5per m^2
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radius of cylinder = 18 cm
height of cylinder =3 cm
CSA of cylinder = 2×pie ×r^2×h
=2×3.14 ×18×18×3
=6104.16
in function hall cylinder pillars are 15
so 15 CSA of pillars = 6104.16×15
=91562.4 cm^2
=9.15624 m^2
at rate 0.5 ×9.15624 =45781.2
height of cylinder =3 cm
CSA of cylinder = 2×pie ×r^2×h
=2×3.14 ×18×18×3
=6104.16
in function hall cylinder pillars are 15
so 15 CSA of pillars = 6104.16×15
=91562.4 cm^2
=9.15624 m^2
at rate 0.5 ×9.15624 =45781.2
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