Question

a cylindrical pillar pillar is 1 m in diameter and 4.2 m in height find the cost of white white washing machine the curved surface of the pillar of the pillar of the pillar @ rupiah 15

Answer 1

diameter of cylinder-1 m
height of cylinder= 4.2m
CSA of cylinder= 2 x 22/7 x 0.5 x 4.2
=13.2m so.
cost of painting per. m sq. =15
now cost of painting 13.2m sq. = 13.2 x 15
= 198 Rs

Answer 2

The cost of white white washing machine the curved surface of the pillar of the pillar is Rs.198

Step-by-step explanation:

Diameter of pillar = 1 m

Radius of pillar =$\frac{1}{2} = 0.5 m$

Height of pillar = 4.2 m

Curved surface area of pillar = $2 \pi r h = 2 \times \frac{22}{7} \times 0.5 \times 4.2 = 13.2 m^2$

Cost of white washing 1 sq.m. = Rs.15

Cost of white washing 13.2 sq.m. = $Rs.15 \times 13.2=Rs.198$

Hence the cost of white white washing machine the curved surface of the pillar of the pillar is Rs.198

#Learn more;

The curved surface area of cylindrical pillar is 264 m² and its volume is 924 m.

Find the diameter and height of the pillar

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