They have the same measure - they are congruent.
Parallel lines have the same slope.
Not too sure about the given description but they could be equal alternate angles.
Angles are the points at which lines meet. Sides are the opposite, being the lines that connect at angles.
Two lines that intersect will create2 pairs of equal angles and if the lines are perpendicular the angles created will be right angles
The lines are perpendicular.
Vertical angles have the same angle measure. Vertical angles are formed by two intersecting lines that look like an "x". Angles that are across from each other on this "x" are called vertical angles.
Either they are parallel to or they intersect each other.
The relationship is that they are supplementary angles because angles on a straight line add up to 180 degrees
Alternate Exterior Angles :)
Total 180o
The answer will depend on the nature of the lines.
Alternate Interior Angles
There is no relationship between slope and the theorem, however the theorem does deal with the relationship between angles and sides of a triangle.
They are alternate angles which are equal in size
An angle is a figure formed by two rays or lines that meet at a common endpoint, called the vertex. It is typically measured in degrees. Angles are used in geometry to describe the relationship between lines and shapes.
"Perpendicular" describes the relationship between two lines. A single line can't be 'perpendicular'.Two lines are perpendicular if1). they cross each other2). at the place where they cross, they form 90-degree angles