1.

the slant height and base diameter of a conical tomb are 25 m and 14 m respectively find the cost of whitewashing its curved surface at the rate of rupees 12 per m square

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SLANT height of conical tomb, l=25 m

Diameter of conical tomb, d=14 m

Radius of conical tomb, r=14 m

Curved surface AREA of conical tomb=\pirl

=22/7*14*25

=44*25

=1100 m^2

Cost of whitewashing 1 m^2=Rs.12

Cost of whitewashing 1100 m^2=1100*12=Rs.13200

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