Geometry Basics
Triangles
Angles
Transformations
Misc.
100
A pair of adjacent supplementary angles
What is a linear pair?
100

There are this many congruency postulates

What is 5?

100

Two angles that add up to 180 degrees

What are supplementary angles?

100
A parallelogram with four right angles
What is either a square or a rectangle?
100

The first reason of every proof

What is given?

200

two lines that are the same distance apart and will never touch

What are parallel lines?

200

Triangles that are the same shape different size

What are similar triangles?

200

Linear pairs are always supplementary and _______.

What is adjacent?

200

The coordinates of the image after the point (2,4) is reflected across the line y=x

What is (4, 2)?

200

In a parallelogram we have two opposite sides.  One is length 7x -2.  The other is length 2x + 8.  The length of each of these sides is ________.

What is 12?

300

Lines that intersect to form a right angle

What are perpendicular lines?

300

opposite/adjacent

What is tangent?

300

We set the expressions equal to each other when two angles are _____.

What is congruent?

300

The coordinates of the image after the point (-1,5) is rotated counter clockwise 90 degrees

What is (-5, -1)?

300

The length of the bottom of a triangle is 20 units long.  The length of the midsegment is _____.

What is 10?

400

All three angles together in every triangle will add up to this number of degrees

What is 180 degrees?

400

The acronym that can help us remember the three trig ratios

What is SOH CAH TOA?
400

Triangle GJL is congruent with Triangle RQS.  This angle is congruent with angle JLG

What is angle QSR?
400

A transformation where the pre-image and image are not congruent, they are only similar

What is a dilation?

400

The value of x when the four angles of a quadrilateral are given by: 2x x-5 3x-2 and 5x+19

What is x=31.6?

500
The angle below horizontal that an observer must look to see an object that is lower than the observer

What is angle of depression?

500

When you solve for the missing angle of a triangle, you will always use this type of function

What is an inverse trig function?

500

Two angles that are inside the parallel lines and on opposite sides of the transversal

What are alternate interior angles?

500

The ratio of the length of a side of the pre-image to the length of the corresponding side of the image

What is a scale factor?

500

The reason we use in any proof to prove that something is congruent with itself.  

What is the reflexive property?

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