Symmetry
Congruent vs Similar
Transformations
Triangles and Polygons
Parallel and Perpendicular
100
How many lines of symmetry does the equilateral triangle have?
3 lines of symmetry
100
To figures are congruent if......
They have the exact same shape and size.
100
The 4 transformations studied in class.
Reflection, Rotation, Translation, and Dilation
100
Name the figure
Hexagon (6 sides)
100
What do you call lines that intersect to form four right angles?
Perpendicular Lines
200
How do you know when a figure have Rotation Symmetry? Explain.
Rotation Symmetry: when a shape matches its original shape before completing a 360 degree rotation.
200
How can you find scale factor when given two similar figures?
Use the fraction new side over original side
200
Describe the transformation
Rotation
200
Find the missing interior angle.
x+34+120=180
26 degrees
200
Are these Parallel, Perpendicular, or Neither? Explain how you know?
y = 5x + 4 and y = 5x +6.
Parallel
Both Equations have the same slope of 5.
300
Reflection Symmetry: Yes or No
Rotation Symmetry: Yes or No
Reflection Symmetry: No
Rotation Symmetry: Yes (matches again when turned 180 degrees)
300
The two triangles below are congruent. Solve for x.
2x+11=3x-9
x=2
300
Describe the following transformation:
Left 6 units, Up 2 units
300
Find x.
Exterior Angle Theorem:
132=9x+3+93
x=4
300
What is the slope of the perpendicular line to
y=3/4x+6
Perpendicular Slope =
-4/3
400
Name a letter that has a horizontal line of symmetry.
Bonus: Name all 5 possibilities.
Possible Answers: B, C, D, E, or K
400
Determine if the two triangles are similar or not.
Similar
Each corresponding side pair had the same scale factor.
400
Find the sequence of transformations to get from triangle A to triangle C 
1) Reflection about the y-axis
2) Reflection about the x-axis
400
The sum of the interior angles of a polygon with 17 sides is...
Sum of Interior Angles: 2,700 degree
(n-2)*180
(17-2)*180
400
What is the slope of a line parallel to the line below?
y-5=7/2(x+6)
Parallel Slope =
7/2
500
Which shapes have exactly two lines of reflection symmetry?
The Yellow and the Blue Rectangles
500
The length of side x.
x = 7
500
Dilate the triangle made by the follow points by a scale factor of 3.5 around the origin.
A: (2, 3) B: (4, 1) C: (-2, -2)
After dilation:
A'(7, 10.5) B'(14, 3.5) C'(-7, -7)
500
Solve for x:
Sum of Interior Angles:
(7-2)*180=900
6x+150=900
x=125
500
Are these Parallel, Perpendicular, or Neither? Explain how you know.
y = 2/3x -1 and y = -2/3x + 4.
Neither
The slope are not equal and they are not opposite reciprocals. They are just two intersecting lines.