They are co-terminal angles.
Yes. If the two acute angles have their measures add up to 90 degrees, and both angles share one side that is common to each angle (they are adjacent), then their non-common sides will be perpendicular.
Supplementary angles
A rectangle has two right angles and parcel sides
Yes as in the case of an isosceles triangle which has two equal sides and two equal base angles
That would be a right angle: The measure of complementary angles adds up to 90 degrees. Adjacent angles are angles that share one common side and one common vertex, but no common interior points (the angles don't overlap). The non-common sides of two adjacent angles are the two "outside" sides (the unshared sides). Two adjacent and complementary angles would form a right angle split by a ray/line, and not necessarily bisected (perfectly divided in half).
They are co-terminal angles.
Yes. If the two acute angles have their measures add up to 90 degrees, and both angles share one side that is common to each angle (they are adjacent), then their non-common sides will be perpendicular.
Supplementary angles
All angles have two sides!
Those angles are called Alternate Exterior Angles. When two lines are crossed by another line (which is called the Transversal), the pairs of angles on opposite sides of the transversal but outside the two lines are called Alternate Exterior Angles.
An isosceles triangle has two sides and two angles that are the same.
A rectangle has two right angles and parcel sides
A right trapezoid can have no congruent sides and two right angles.
Yes as in the case of an isosceles triangle which has two equal sides and two equal base angles
A rhombus has two opposing acute angles (less than 90º) and two opposing obtuse (greater than 90º) angles, with the opposing sides being parallel and the sides being of equal length. A parallelogram can have the two acute angles and two obtuse angles, but have sides of different lengths. That is: two opposing sides shorter than the other two opposing sides. All angles total 360º
A kite need not have any right angles.It can have no right angles (the most common type of kite);It can have 1 right angle (where the two shorter sides, or the two longer sides meet); orIt can have 2 right angles (one between the two shorter sides, and one between the two longer sides)If it has 4 right angles it degenerates into a Rhombus as all four sides must be equal in length; but this rhombus with all four angles equal (at 90°) is called a Square.