In the adjoining figure A- BXC represent sector with r=7cm ,theta=60° The sector is cut down and folded such that AB and AC are coincide BXC form a circle: 1) name the three dimensional object 2)find the perimeter of its base 3)Find the curved surface area of object formed
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Answer:
to verify that the angle subtended by an arc at the centre of circle is double the angle subtended at any point on the remaining part of the circle