Geometry Jeopardy

Symbols/Bisectors

100

This symbol <

Angle

200

Cuts an angle into 2 congruent angles

Angle Bisector

300

This <BCD ≅ <GHI reads as 

Angle BCD is congruent to angle GHI

400

If △QRS ≅ △WXY, then make a statement about one set of congruent angles or segments. (Use the correct symbols and remember that order matters.)

QR ≅ WX or RS ≅ XY or <RSQ ≅ <XYW....

500

The difference between a segment and perpendicular bisector

Perpendicular bisector forms a 90 degree angle

Translations

100

T_{a,b is the notation for}

Translation

200

T_{-3,8 for Point S.}

_{S: (-7, 9)}

S': (-10,17)

300

For point B, T_2,8 , then T_-1,-4

B:(3,-2)

B'':(4,2)

400

If C':(-6, 4) and the translation used was T_3,9 , what was C?

C:(-9, -5)

500

What is the translation used for the following points. (Use the Notation to answer)

A: (1,-8) --> (-5, 7)

B: (3, 9) --> (-3, 24)

T_-6,15

Rotations

100

If starting in Q4 and we must rotate 90 degrees counterclockwise, this is the quadrant we end in

Quadrant 1

200

R_{90 Clockwise for point L.}

_{L: (4, -6)}

L': (-6,-4)

300

True or False.

R₁₈₀ for point G will bring me to Q3.

G: (-2, 5)

If False, what will it bring me to?

False, it will bring you to Q4.

400

If point F is in Q3 and we must have a R₂₇₀ Clockwise, which quadrant will F' be in?

Q4

500

R₉₀ counter clockwise, then R₁₈₀ for point K.

K:(4,9)

K'':(9,-4)

Reflections

100

True or False.

When reflecting over the x-axis, my x-coordinate changes signs.

False

200

Reflect point V over the y-axis.

V: (3,0)

V': (-3,0)

300

Reflect point T:(-2,5) over reflection line x=6.

T':(14,5)

400

Reflect point R over the x-axis, then over y=1.

R:(2,0)

R'': (2,2)

500

If M is (5,-3) and M' is (5,7), the reflection line is...

y=2

Proofs

100

HL stands for

Hypotenuse Leg

200

SSA will not work unless the triangle is

a right triangle

300

A student proved that two triangles were congruent using AAA. Can they use this postulate to justify their response?

No, because AAA is not always proven to show congruence

400

1. <A ≅ <B because they are on the inner corners of the 'Z'. (What type of angles are these?)

2. <P ≅ <Q because they are matching angles. (What type of angles are these?)

1. Alternate Interior Angles

2. Corresponding Angles

500

ON THE BOARD

Given: ABCD is a parallelogram.

What 3 postulates can you end up with?

SAS, SSS, & ASA