Yes its 2 diagonal intersect at right angles
No, not normally
angles...
Angles that are pairs of opposite and congruent lines formed by intersecting lines are intersections
Equal opposite angles.
Yes its 2 diagonal intersect at right angles
All angles of a parallelogram are not necessarily congruent. A parallelogram means that the opposite sides run in straight lines that don't intersect. An example is a rectangle or square. Length of sides DO NOT determine if opposite angles are congruent. As long as opposite sides do not intersect each other at any point (if you continue to draw the lines), then the angles diagonal from each other are the same.
No, not normally
angles...
Angles that are pairs of opposite and congruent lines formed by intersecting lines are intersections
Opposite angles are equivalent when formed by two intersecting lines
Equal opposite angles.
The opposite angles are simply called opposite angles. They always have the same measure.
When 2 lines intersect, 4 angles are formed. The angles that are directly opposite to each other are called opposite angles.
They are equal opposite vertical angles and if the lines are perpendicular to each other then 90 degree angles are formed.
Corgent Angles
Angles are the points at which lines meet. Sides are the opposite, being the lines that connect at angles.