In two dimensions, lines can be parallel, angles cannot. So no plane shape has parallel angles.
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NO, in order for a triangle to have two right angles, it would also have to have two parallel sides. This is impossible, as these two side would stretch into infinity and never close the triangele
A triangle cannot have two parallel sides. In order for a figure to be a triangle, it must be a closed figure with three sides and three angles. If two of the sides were parallel, there is no way the figure could be closed by only one other line.
If you mean "triangle", a triangle can never have two parallel sides.If you mean "triangle", a triangle can never have two parallel sides.If you mean "triangle", a triangle can never have two parallel sides.If you mean "triangle", a triangle can never have two parallel sides.
a triangle always forms two angles?
No triangle. A triangle must have 3 angles that add up to 180 degrees, and three and only three sides, with no sides parallel.