A line is drawn from the origin to the point . O The line is rotated about the to form a cone. OP y-axis where is the slant height and the radius. s r Determine the shaded outer surface area of the resulting cone. (4)
A line is drawn from the origin O to the point . The line OP is rotated about the y-axis to form a cone. where s is the slant height and r the radius. Determine the shaded outer surface area of the resulting cone. (4)
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