Vocabulary
What's always the first line in a proof?
the given statement.
What happens to a point that is translated up 3 times?
Add 3 to the y-coordinate.
Draw an example of SSS.
Draw an example of SSS.
Reflect the point (11,1) across the y-axis.
(-11,1)
When two shapes have all equal sides and angles measures, we call them ____________.
congruent
What happens to a point that is translated left 3 times?
Subtract 3 from the x-value.
Draw an example of ASA.
Draw an example of ASA.
Reflect the point (1,7) across the x-axis.
(1, -7)
__________ make up the right column of a proof.
reasons
What happens to a point that is reflected across the x-axis?
The y-value changes sign.
Draw an example of SAS.
Draw an example of SAS.
Translate the point (4, 20) right 7 units and down 10 units.
(11,10)
A _______ transformation does NOT preserve its shape.
non-rigid
What happens to a point that is reflected across the y-axis?
The x-coordinate changes sign.
Is AAA a congruence criteria?
No
Translate the point (0, -6) left 1 units and up 2 units.
(-1, -4)
A _______________ is when two angles together form 180 degrees.
linear pair or straight angle
What happens to a point that is rotated 90 degrees clockwise?
(x, y) to (y, -x)
How do you know which sides and angles are congruent?
The tickmarks
Reflect the point (1,2) across the y-axis then move it up 18 times. What's the new coordinate?
(-1, 20)