Vocabulary
Diagrams
Name that Triangle
Congruence
Symbols
100

This "p"-word describes two lines that will never touch

Parallel

100


Perpendicular

100


Right Triangle

100


SSS (side-side-side)

100

<ABC

Angle ABC

200

This "o"-word describes an angle larger than 90 degrees and less than 180 degrees

Obtuse

200


Acute Angles

200


Equilateral Triangle

200


ASA (angle-side-angle)

200

ll

Parallel

300

If two triangles have angles measures in common, they could be described with this "s"-word

Similar

300


Alternate Interior Angles

300


Isosceles Triangle 

300


SAS (side-angle-side)

300

~

Similar

400

This word begins with a "c" and means that two shapes are identical

Congruent

400


Corresponding Angles

400


Equilateral Triangle

400


AAS (angle-angle-side)

400

~

=

Congruent

500

You might informally call the intersection point of two sides a "corner" but the correct term begins with a "v". 

Vertex

500

What "t" term is correct for describing the red lines? 


Transversal

500


Scalene Triangle

500


HL (hypotenuse-leg)