Parallel Lines & Transversals
Vocab
Angles of Triangles
Angles of Polygons
Using Similar Triangles
100

Which angles are interior angles?

3, 4, 5, 6

100

this is a line that intersects two or more lines

Transversal

100

this is the sum of the interior angles of a triangle

180 degrees

100

This is the formula that is used to find the sum of the interior angles of polygons

180 (n-2)

100

This is how to tell if two triangles are similar

all of the angles will be congruent

200

Angle 7 measures 67 degrees, then angle 5 measures this...

113 degrees

200

These are the angles inside of a polygon

Interior Angles

200

this is the value of x 

65 degrees

200

This is the value of x

163

200

True of false, these triangles are similar

true

300

Angle 7 measures 67 degrees, so angle 1 measures this..

113 degrees

300
This type of polygon has every line segment that connects any two vertices entirely inside the polygon

Convex

300

This is the value of x

71 degrees

300

This is the value of x

120

300

True or false, these triangles are similar

true

400

These angles all have the same measurement as angle 1...

4, 5, 8

400

This type of polygon has all sides that are congruent and all interior angles are congruent.

Regular polygon

400

This is the value of x

109 degrees

400

this is the measure of one angle inside of a regular octogon

135 degrees

400

True or false, these triangles are similar

true

500

This is the value of x...

20

500

This tool is used to measure angles

Protractor

500

This is the value of y

15

500

This is the value of x

35

500

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