6Â years, 8Â months ago
find the total surface area of a cone which is made by joing the sides of a sector of a circle with radius 42cm and an angle of 60degree... How this que will be solved??
6Â years, 7Â months ago
area of circle pi*r square. area of 60 degree sector (pi*r*r*60)/60 substituting the value ans is 924 or 294*pi.
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