It is impossible to have a triangle with 3 right angles. It is possible to draw a triangle with three right angles on the surface of a sphere: www.metacafe.com/watch/769025/270_degree_triangle_yes_3_right_angles
If by parallel, you mean two lines that do not intersect, yes, it is possible to draw them on the surface of a sphere. They will end up being circles, and most pairs will not be equal in size. If you add the idea that the two lines also continue to infinity to the definition, then you cannot draw such things on the surface of a sphere.
Yes, it is possible to draw lines on the surface of a sphere that are neither parallel nor intersecting.
you can draw infinite lines
A sphere is three dimensional, a circle is not. So a tennis ball is sphere not a circle You can draw a circle on paper but is is not a sphere.
To draw a great circle on a sphere, start by defining the diameter as the largest circle that can be drawn on the sphere's surface. For small circles, choose a point on the sphere and draw a circle with that point as the center and the radius less than the sphere's radius. Remember that the center of a small circle lies outside the circle on a sphere's surface.
It is not possible to have a sphere that is 11 cm x 1 cm.It is not possible to have a sphere that is 11 cm x 1 cm.It is not possible to have a sphere that is 11 cm x 1 cm.It is not possible to have a sphere that is 11 cm x 1 cm.
None. It is not possible to make a sphere in that fashion.
You can draw a triangle with two obtuse angles in a sphere
Yes if you have incredible art skills.
No
a sphere