there are 16 cylinderical pillers in a hall the height and the diameter of each pillar is 7m and 98 cm respectively find the cost of painting curved surfaced area of the pillars at rs 22 persqm
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Step-by-step explanation:
pillar=16 cm
radius of cylindrical pullers = 1/2 *diameter
=1/2*98
=49cm
height of cylindrical pillars = 7m
=700cm
lateral surface of area 16 cylindrical pillars= 2 pie rh
2*22/7 *49/100* 7cm^2
surface of area 16 cylindrical pillars = 34496cm^2
Hence, total cost of painting at the rate of Rs 22 per m ^2= 758912
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