1) Why is it that a sphere is a 2-dimensional object even though we need 3-dimensions to actually *draw* the sphere.(adsbygoogle = window.adsbygoogle || []).push({});

2) If the Cartesian plane is a 2-dimensional *space*, then the number-line should be a 1-dimensional *space*, right? (not sure if space is the appropriate term here)

3) Would a point be considered a 1-dimensional or a 0-dimensional entity?

Thanks.

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# Dimensions! Clarification needed.

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