Hey users.. Please solve this question... Find the cost of painting the total outside surface area of solid cylinder 20m in height nd 50 cm in diameter at 10.50Rs per 100sq.m.
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Answered by
3
I think it's 74,532rs
Batu1:
no
Answered by
6
curved surface are of cylinder is 2(pi)rh
=2×22/7×25×20
=50×20×22/7
=1000×22/7
=1000×3.14
=3140.
cost of painting 100m² area is 10.5
Cost of painting 3140m² area is
31.4×10.5
=329.7
there for cost of painting 3140m² area is
rs.329.7/-
=2×22/7×25×20
=50×20×22/7
=1000×22/7
=1000×3.14
=3140.
cost of painting 100m² area is 10.5
Cost of painting 3140m² area is
31.4×10.5
=329.7
there for cost of painting 3140m² area is
rs.329.7/-
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