Transformations
A figure is rotated 90° clockwise. What type of transformation is this?
Rotation
Two angles measure 35° and 55°. What is their relationship?
Complementary
Congruent polygons have the same ______ and ______.
Shape and size
An angle measuring exactly 90° is called a ______ angle.
Right angle
If two angles are vertical and one measures 68°, what is the other angle?
68°
A triangle moves 4 units right and 2 units up. What transformation occurred?
Translation
Two angles add up to 180°. What are they called?
Supplementary Angles
In congruent polygons, corresponding sides are ______.
Equal/Congruent
What is the point where two lines intersect called?
Vertex/Point of intersection
Angle A and Angle B are complementary. Angle A = 27°. Find Angle B.
63°
Does a translation change a figure's size or shape?
No
Vertical angles are always ______.
Congruent/Equal
If △ABC ≅ △DEF, which angle corresponds to ∠B?
∠E
What is the line used to flip a figure during a reflection called?
Line of reflection
Two supplementary angles are congruent. What is the measure of each angle?
90°
What transformation flips a figure over a line?
Reflection
Angles 1 and 2 are vertical. If ∠1 = 112°, find ∠2.
112°
If △ABC ≅ △XYZ, side BC = 11 cm. What is side YZ?
11 cm
Corresponding sides in congruent polygons are always ________.
Equal (or congruent)
Angle A and Angle B are supplementary. Angle A = 138°. Find Angle B.
42°
Name one thing that stays the same after a translation.
Possible Answers:
One angle is three times its complement. Find both angles.
67.5° and 22.5°
A quadrilateral has side lengths 5, 7, 5, 7. Another congruent quadrilateral must have side lengths ______.
5, 7, 5, 7
Name the three transformations you've learned.
Translation, Reflection, Rotation
Triangle ABC ≅ Triangle DEF. ∠A = 48°, ∠B = 79°. What is ∠F?
53°