1.

kt anda esca-wasl

Answer»

slant height=l=25mdiameter=d=14mradius=r=d/2=14/2=7mCSA of cone =π*r*l= 22/7*7*25=550 square meterscost of white washng 100m^2 =Rs210cost of white washing 550 square meters= (550×210)/100=Rs 1155



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