In geometry, a transversal is a line that passes through two lines in the same
plane at two ... that cuts two parallel lines at right angles is called a perpendicular
transversal. ... Further, if th...
As can be seen from the figure above, when two lines intersect, four angles are
formed. Each opposite pair are called vertical angles and are always congruent.
An angle is the intersection of two rays with a common endpoint. ... They are
always equal in measure. <1 and <3 are vertical angles. <2 and ... THEOREM:
Complements of the same angle, or congruent angles, are congruent.
A Scalene Triangle has no congruent sides. ... The sides that are the same length
are called the legs. ... An Equiangular Triangle has 3 congruent angles.
Jan 24, 2013 ... Explain why vertical angles must be congruent .... The non-adjacent angles are
called vertical or opposite . Also, each pair of adjacent angles ...
Vertical angles are pairs of angles formed by two intersecting lines. ... in four
corresponding pairs that have the same measure, so therefore are congruent. ...
area between the two lines that are cut by the transversal, are called interior
When two parallel lines are cut by a third line, the third line is called the
transversal. In the example below, ... Recall that all pairs of vertical angles are
These quadrilaterals are called parallelograms They take a variety of shapes, but
one ... They would never intersect because they are parallel. Notice, also, that the
opposite angles of a parallelogram are congruent, as are the opposite sides.
They are defined as a pair of nonadjacent angles formed by only two intersecting
lines. They are known as 'Kissing Vs' and always have congruent measures.
Since the sum of the angles of a triangle is always 180 degrees... y + z = 90
degrees. The two sides of the triangle that are by the right angle are called the
legs... ... all the sides are the same length (congruent) and all the angles are the