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Wen turned about its axis of rotation which shape could have created this three dimensional object

Wen turned about its axis of rotation which shape could have created this three dimensional-example-1

2 Answers

5 votes
i believe it is an isosceles triangle tell me if i'm wrong.
User Mega
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An isosceles triangle should be the answer if both the top and bottom cones are congruent. Without the options I can only give you the approximate answer, hope this helps. 
User Evenwerk
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