If the noncommon sides of two adjacent angles form a right angle, then the angles are complementary angles.
Right Angle! (:
A quadrilateral with 4 right angles and opposite sides that are parallel can be either a rectangle if the adjacent sides are of different length or a square if the adjacent sides are of the same length.
linear pair
All quadrilaterals apart from rectangles. Even parallelograms have adjacent angles that are not equal.
Not clear what exactly the question is.
a linear pair!
If the noncommon sides of two adjacent angles form a right angle, then the angles are complementary angles.
A right angle.
Right Angle! (:
-- Opposite sides are parallel. -- Opposite sides are equal. -- All four sides are equal. -- Adjacent sides are equal. -- Adjacent angles are supplementary. -- Opposite angles are equal. -- Diagonals are perpendicular. -- Interior angles sum to two straight angles. -- Exterior angles sum to two straight angles.
square and a rectangle
A quadrilateral with 4 right angles and opposite sides that are parallel can be either a rectangle if the adjacent sides are of different length or a square if the adjacent sides are of the same length.
All squares have TWO SETS of opposite, parallel sides. A square is a parallelogram with 4 equal sides and 4 equal angles (right angles) of which adjacent sides are perpendicular. The related parallelogram, the rhombus, or "diamond" shape, also has 4 equal sides, but no right angles, where opposite angles are equal and adjacent angles are supplementary (sum to 180 degrees).
No? Wouldn't they then be supplementary? Opposite rays make a straight angle/line, and if the exterior sides made the straight angle, the adjacent angles would be supplementary. ...Right?
linear pair
Four sides; Four angles; Sides are of equal length; Opposite sides are parallel; Diagonals bisect one another; Opposite angles are equal; Adjacent angles are supplementary. And probably many more.