Yes. Write an upper case (capital) letter F (in italics if you like). The angles underneath the horizontal lines of the F will form a single pair of corresponding angles.
it is not possible
No
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
show the drawing
Yes.
is it possible to draw a triangle with angles 150 20 and 20°
No it is not possible to draw 1 triangle with 2 right angles because the angles in a triangle should equal to 180 degrees
it is not possible
No
No, it is not.
Yes if they are right angles
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
Draw an X.
yes it is possible
Yes
show the drawing
For any pair of parallel lines 1 and 2, that are both intersected by a third line, such as line 3 in the diagram below, angle A and angle C are called corresponding angles. Corresponding angles have the same degree measurement. Angle B and angle D are also corresponding angles. On a piece of paper, draw a horizontal line. Now, draw a diagonal line that bisects this line. You have now created four angles. Over the line, label the angles A and B, from left to right. Under the line, label the angles C and D, this time right to left. Angles A and C are corresponding angles, as they have the same degree measurement, and angles B and D are corresponding angles for the same reason. To answer your next question, angles A and B and angles C and D are complimentary angles as their degree measurements add up to 180. The same can be said for angles A and D and angles B and C. any pair of angles that have the same relative position at each intersection where a straight line crosses two others