Download Congruent: ≅ means equal ≅ means equal Adjacent Equilateral

Congruent: ≅ means
equal
Adjacent
Equilateral Triangle
≅ means equal
Two angles that share a
common side and a
common vertex
A triangle with equal
angles
(All Triangles add up to
180°)
Obtuse
An angle having a measure
greater than 90°
and less than 180°
Acute
An angle having a measure
greater than 0°
and less than 90°
Straight
One angle that measures
exactly 180°
Supplementary
Any two angles such that
the sum of their measures
is 180°
Right
One angle that measures
exactly 90°
Complementary
Any two angles such that
the sum of their measures
is 90°
Vertical
Angles that share the same
vertex and are diagonal
from each other
Perpendicular
Parallel
Lines that intersect to form
right angles
Lines that are always the
same distance apart,
never intersecting
Transversal
A line that intersects two
or more other lines at
different points
Exterior
Angles that are located on
the outside of a set of
parallel lines cut by a
transversal
Interior
Angles that are on the
inside a set of parallel lines
cut by a transversal
Corresponding
Angles that are located on
the same position on a set
of parallel lines cut by a
transversal
Corresponding angles are
the same measure