the slant height and base diameter of a colonial term for 25 metre and 14 metre respectively. find the cost of whitewashing its curved surface at the rate of rupees 210 per hundred metre square.
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given
slant height=l=25m
diameter=d=14m
radius=r=d/2=14/2=7m
CSA of cone = pi*r*l
= 22/7*7*25
=550 square meters
cost of white washng 100m^2 =Rs210
cost of white washing 550 square meters= (550×210)/100
=Rs 1155
Answered by
0
Answer:
given
slant height=l=25m
diameter=d=14m
radius=r=d/2=14/2=7m
CSA of cone = pi*r*l
= 22/7*7*25
=550 square meters
cost of white washng 100m^2 =Rs210
cost of white washing 550 square meters= (550×210)/100
=Rs 1155
Step-by-step explanation:
thanks!!
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