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Fourteen circular pillars of a building are to be painted. If the diameter of each pillar is 50 cm and height 4 m, find the total area to be painted. Also find the total cost of paint at the rate of Rs. 6.5 per sq. m

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Answer:

Given :

Given :d=50 m

Given :d=50 mh=4 m

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25)

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2 ×4×10=15.7m

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2 ×4×10=15.7m 2

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2 ×4×10=15.7m 2 [r=

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2 ×4×10=15.7m 2 [r= 2

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2 ×4×10=15.7m 2 [r= 250cm

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2 ×4×10=15.7m 2 [r= 250cm

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2 ×4×10=15.7m 2 [r= 250cm =25cm=0.25m]

Given :d=50 mh=4 mSurface area of 10 cylindrical pillars =2πrh×10=2×3.14(0.25) 2 ×4×10=15.7m 2 [r= 250cm =25cm=0.25m]Cost of painting =Rs.(15.7×0.50)=Rs.7.85

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