Download reflections, rotations, dilations 4

reflections, rotations, dilations 4­6.notebook
April 06, 2017
04/06 Bellwork
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
Translation questions?
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
Reflections
Flipped, line
reflect over x‐axis
A (2, 3)
B (3, 1)
C (1, 2)
reflect over y‐axis
M (‐5, ‐3)
A (‐2, ‐3)
T (‐2, ‐5)
H (‐5, ‐5)
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
Pre‐image and Image are: congruent
Corresponding angles are: congruent
Corresponding sides are: congruent
Do practice 1 and 2 on reflections.
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
Rotations
turned, point
rotate the triangle 90o clockwise
A (2, 3)
B (3, 1)
C (1, 2)
rotate the figure 90o counter clockwise
M (‐5, ‐3)
A (‐2, ‐3)
T (‐2, ‐5)
H (‐5, ‐5)
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
Rotate the triangle 180o A (2, 3)
B (3, 1)
C (1, 2)
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
A (2, 3)
B (3, 1)
C (1, 2)
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
Dilations
stretches, shrinks
Ex. 1
scale factor = 2
A (2, 3)
B (3, 1)
C (1, 2)
scale factor = .5
M (‐6, ‐4)
A (‐2, ‐4)
T (‐2, ‐6)
H (‐6, ‐6)
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
Pre‐image and Image are:
similar ‐ same shape, different size
Corresponding angles are:
congruent
Corresponding sides are:
parallel and proportional in length
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reflections, rotations, dilations 4­6.notebook
April 06, 2017
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