parallel lines
triangle congruence
rigid motion transformations
relationships in triangles
definitions
100
angle 1 and angle 4
vertical pair
100
AAS stands for
angle-angle-side
100
is this a rigid motion?
no
100
y+x=
180 degrees
100
line that divides something into two equal or congruent parts
bisector
200
angle 3 and angle 7
corresponding
200
if two right triangles contain congruent hypotenuses and a pair of congruent leg, then they are congruent
HL
200
is this a rigid motion?
yes
200
x=
71
200
all angles of the triangles are under 90 degrees
acute
300
what angle relationship would justify how we solve for x
alternate exterior angles
300
AD is congruent to
CB
300
translation is under what motion category?
rigid
300
x=
35
300
intersection point
vertex
400
x=
38
400
∠ABD≅∠CBD
definition of angle bisector
400
a reflection over the y axis will result in a ______ motion
rigid
400
x=
12
400
angle that is greater than 90 degrees but less than 180 degrees
obtuse angle
500
angle 10=
65
500
triangle sum theorem
all angles must add up to 180 degrees
500
what is the angle of rotation of a star
72 degrees
500
find the missing side angle
9
500
two lines that run next to each other but never intersect
parallel lines