On a 2-dimensional plane surface, the answer is NO!!!! The sum of the three angles is ALWAYS 180 degrees.
However, when drawn on a 3-dimensional surface, such as sphere, then YES.
Taking the Earth as an example, from the North Pole draw two meridians, 90 degrees apart. Carry these meridians to the Equator. Both these meridians will intersect the Equator at 90 degrees. Hence The triangle will have three(3) 90 degrees angles. Equals 270 degrees.
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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
yes it is possible to do that.
You can draw a triangle with two obtuse angles in a sphere
it is not possible
Yes!!