A semi circular lamina of radius 35 cm is folded so that the two bounding radii are joined together to form a cone . Find :
(i) the radius of the cone .
(ii) the ( lateral) surface area of the cone .
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A semi circular lamina of radius 35 cm is folded so that the two bounding radii are joined together to form a cone . Find :
(i) the radius of the cone .
(ii) the ( lateral) surface area of the cone .
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