Is it possible to draw a triangle with two right angles?

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.