Understand Angle Transformation Properties
Middle School Math · Flashcards · Application
MIDDLE SCHOOL MATH · FLASHCARDS
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QUESTION
Find and correct the false claim: "A reflection changes an angle's measure." What is the correction?
QUESTION
If
m
∠
D
=
2
x
+
10
m\angle D = 2x + 10
m
∠
D
=
2
x
+
10
and after a rotation
m
∠
D
′
=
50
m\angle D' = 50
m
∠
D
′
=
50
, what is
x
x
x
?
QUESTION
What is the image measure if
m
∠
A
=
47
∘
m\angle A = 47^\circ
m
∠
A
=
4
7
∘
and
A
A
A
is rotated to
A
′
A'
A
′
?
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ANSWER
47
∘
47^\circ
4
7
∘
. Rotations preserve angle measures exactly.
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