what two shapes can be drawn on sphere that cant be drawn on a plane? what two shapes can be drawn on a sphere and a plane? help pleaseeeeee!
2007-10-08 06:00:37 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Super Mario was half right - on a sphere you can draw a triangle where the sum of the interior angles is greater than 180 degrees.
But on a sphere, there are no parallel lines - all "straight" lines intersect. (A "straight" line on a sphere is a "great circle" a line that divides the sphere into two hemispheres.)
But that means that you can draw two straight lines that intersect twice, which you can't do on a plane.
2007-10-08 17:46:27 · answer #1 · answered by simplicitus 7 · 0⤊ 0⤋
Well, one shape is a triangle with more than 180 degrees and then two parallel lines that actually meet each other. These are possible on a sphere but not on a plane.
Other shapes are just a circle and two parallel lines that never meet. These are possible on both the sphere and the plane.
2007-10-08 13:38:08 · answer #2 · answered by The Prince 6 · 0⤊ 0⤋