These transformation(s) result in congruent figures.
Reflection, Rotation, Translation, Dilation
Reflection, Rotation, Translation
Find the new coordinates of (10,12) if you translate the point three units left and 4 units up.
What is (7,16)?
These transformation(s) do NOT result in a congruent figures?
Reflection, Rotation, Translation, Dilation
What is a dilation?
Write the notation of point (x,y) after it moves 3 spots to the left and 7 spots up.
What is (x-3,y+7)?
These properties change under a reflection:
Size, Shape, Location, Orientation
What are orientation and location?
A picture with one point (-3,4) was reflected over the y-axis. What should be the new coordinates of the point?
What is (3, 4)?
QRST has vertices Q(2,-1), R (6,-1), S(6,-3) and T(2,-3). What will be the coordinates of vertex R after the rectangle is rotated 90º counterclockwise about the origin?
What is (1,6)?
Line segment CD was dilated around the origin by a scale factor of 2. The endpoints of the image are C' (4,0) and D' (6,2). What are the coordinates of the endpoints of the original line segment?
What is C(2,0) and D(3,1)?
These properties are preserved (stay the same) under a dilation.
Size, Shape, Location, Orientation
What are shape and orientation?
Graph ∆LMN after a translation of 6 units right and 4 units down: L(0,3) M(6,4) N(3,9).
What is L'(6,-1), M'(12,0), N'(9,5)?
Graph DEFG after a reflection over x-axis: D(5,5) E(5,8) F(8,8) G(8,5).
What is D'(5,-5), E'(5, -8), F'(8,-8), G'(8,-5)?
Graph ∆JKL after a rotation of 180º about the origin. J(5,6) K(7,9) L (1,2)
What is J(-5,-6), L(-7,-9), L(-1,-2)?
Explain the difference between congruence and similarity.
Congruence: Same shape, same size
Similarity: Same shape, different size