Unit G1 Review

Vocabulary

100

Define perpendicular lines

Two lines that cross at a 90^o angle

200

Define parallel lines

Two lines that never cross

300

Define congruent

Identical - the same shape & size

400

Define angle bisector

The line which cuts an angle perfectly in half

500

Define perpendicular bisector

The line which cuts a line segment perfectly in half at a 90^o angle

Name That Angle!

100

Give an alternative name for angle ABC

CBA

200

Give an alternative name for angle MNO

ONM

300

Give an alternative name for angle NUF

FUN

400

Give an alternative name for angle A'B'A

AB'A'

500

Give an alternative name for angle C'C'''C''

C''C'''C'

Describing Rigid Transformations

100

What is the math word for "flip"?

Reflect

200

What is the math word for turn?

Rotate

300

What do you need to describe a reflection?

A line of reflection

400

What are the two things you need to describe a translation?

A distance and a direction

500

What are the three things you need to describe a rotation?

Angle, direction, and center

Miscellaneous

100

What makes two angles supplementary?

They add to 180^o

200

What is true about vertical angles?

They're always congruent

300

What angles can we rotate by in a square grid?

Multiples of 90^o (90^o, 180^o, 270^o)

400

What angles can we rotate by in an isometric grid?

Multiples of 60^o (60^o, 120^o, 180^o, 240^o, 300^o)

500

What do we call the shape that we get after a rigid transformation is performed?

The image