Angles
Symmetry
Rigid Transformations
Algebra Review
Vocabulary
100
Supplementary angles add to ____ degrees.
180
100
Which shapes have exactly two lines of reflection symmetry?
yellow, blue
100
Name all rigid transformations.
Rotation, reflection, translation
100
Foil:
(x+1)(x-13)
x2 - 12x + 13
100
What is the name of a 5 sided shape?
pentagon
200
Angles around a point add to _____ degrees
360
200
How many rotational symmetries does a square have?
4
200
Describe the following transformation:
translate left 6, up 2
200
Simplify
3(x - 1) - 4x + x2 -10
x2 - x - 13
200
Define "octagon"
8-sided polygon
300
Alternate interior angles are _______.
congruent or equal
300
A regular polygon has 120o rotation symmetry. How many sides does this shape have? What is the most specific name for this shape?
3 sided equilateral triangle
300
describe how shape A transforms to B:
reflect over x axis
300
Solve for b:
5b-12=3b-10
b=1
300
Define decagon
10-sided shape
400
Given triangle ABC.
Angle ABC = 51 degrees
Angle ACB = 73 degrees
Solve for angle BAC.
56 degrees
400
A figure rotates 9 times and lands on itself each time. How many degrees is it rotating each time? What is the name of the figure?
40o nonagon
400
Rigid transformations preserve ____ and ____.
Size, shape.
OR
Angles, side lengths
400
Evaluate when x = 3, y = -1
y2 + xy + 2x - 5
-1
400
A pair of triangles that have identical side lengths and angle measures are called _______.
congruent
500
Same side interior angles are ________.
Supplementary
500
Describe the regular hexagon's reflection and rotation symmetry:
6 lines of reflection symmetry
60o rotation symmetry
500
Describe how the red figure maps to the blue figure
180 rotation in either direction
500
Solve and graph the following inequality:
10 − 4x >14 - 2x
x < -2
<-----o
500
A regular polygon has rotational symmetry of 60o
what is the name of this shape?
hexagon