"Define Me"
Transform Me
Triangle Sum=180
Bonus
100
Perpendicular Lines
Lines that intersect to form right angles (90°).
Symbol: ⊥
100
Define Reflection
Flips a figure over a line (mirror image).
“Flip”
100
The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.
180 Degrees
100
Which angle is vertical to the 42 degree angle?
Angle B
200
Define "Triangle Sum Theorem."
if you add up the measures of the three angles inside a triangle, they will always equal 180 degrees
200
A reflection across the y-axis changes the sign of which coordinate?
A. x-coordinate B. y-coordinate C. both D. neither
A
200
Find the measure of the missing angle.
50 degrees
200
Find the missing angle.
50 Degrees
300
Define Corresponding Angles
Angles in the same relative position at each intersection.
Congruent when lines are parallel.
300
Describe how a figure changes under a rotation of 90° counterclockwise about the origin. (What happens to the points or location of the figure?)
The figure rotates 90° counterclockwise around the origin; points switch positions according to rotation rules.
300
Find the measure of the missing angle.
30 Degrees
300
Vertical angles are always?
congruent (equal measures)
400
Define Vertical Angles
Angles opposite each other when two lines intersect.
Always congruent.
400
Which transformation type correctly describes the transformation from the blue shape to the red shape?
Translation
400
Which of the following is false?
1. A triangle can be drawn with 3 acute angles.
2. A triangle can be drawn with 2 obtuse and one acute angles.
3. A triangle can be drawn with only one obtuse angle and two acute angles.
4. A triangle can be drawn with only one right angle and two acute angles.
#2
400
The measure of angle b is ___ degrees.
105 Degrees
500
Define Rotation
Turns a figure around a fixed point (the center of rotation).
“Turn”
500
Rotation
500
6
500
The measure of Angle SOP is ____ degrees.
104 Degrees