Question

in a building 15 cylindrical pillars are to be painted. the diameter and height of each pillar is 48cm and 7m respectively. Find The Cost of painting if the rate is $2 per sq.m

please reply soon with correct answer

Answer 1

48 CM convert into m = 48/100=0.48m
now radius = 0.48/2=0.24
there is 15 pillars
& c. s. a. of one cylindrical pillar =2πrh
so c. s. a. of 15 cylinder=15x2πrh
=15 x2x22/7xo.24x7
=158.4
now the rate of painting on 1sq. m = Rs 2
so the rate of painting on 158.4 sq.m=
= 158.4 x 2
=316.8Rs

Answer 2

Answer:

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