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L =25m
R = 7m
CSA = πrl
= 22/7×7×25
=22×35 =550m^2
cost = 550×210
---------------
100
= ₹1155
R = 7m
CSA = πrl
= 22/7×7×25
=22×35 =550m^2
cost = 550×210
---------------
100
= ₹1155
saketrishi:
slant height is 25
yes you are right
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here radius = diameter /2 = 14/2 =7m
curved surface area of cone =πrl
C.S.A = π × 7 × 25
C.S.Q = 550 m²
cost = rate × area
cost = 210 × 550 /100
cost = 1155 rupees.
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