Angles
two sides connected by a vertex
angle
two angles connected by a vertex and share a common side
adjacent angles
two lines that never meet if extended
parallel lines
triangle with equal sides
equilateral triangle
triangle has two sides that are equal
isosceles triangle
angle with 90 degrees
right angle
adjacent angles whose sum is equal to 90 degrees
complementary angles
a line that intersects a pair of parallel lines
transversal
none of the sides of this triangle are equal
scalene triangle
pair of angles on sides of the transversal on the outside of the two parallel lines that are intersected by a transversal
alternate exterior angles
angles less than 90 degrees
acute angles
adjacent angles whose sum is 180 degrees
supplementary angles
area inside of the parallel lines that are intersected by a transversal
interior
all angles of this triangle are acute
acute triangle
a pair of supplementary angles: one angle is 126 degrees the other is?
54 degrees
angles that have more than 90 degrees
Obtuse angles
to angles that are not adjacent but share the same vertex point and are opposite each other
vertical angles
area outside the pair of parallel lines intersected by a transversal
exterior
one angle in this triangle is over 90 degrees
obtuse triangle
a pair of vertical angles: one angle is 75 degrees the other is ?
75 degrees
a line that splits an angle into two equal parts intersecting the vertex
bisector
angles vertically on the same side of the transversal ( one side is on the intersecting side of the transversal)
in which one side of each is on opposite parrallel line positions
corresponding angles
a pair of angles on the inside of the parallel lines, on the opposite side of a transversal
alternate interior angles
a 90 degree angle is in this triangle
Right Triangle
corresponding angles one is 80 degrees the other is ?
80 degrees