G3 Transformations Wrap-Up

Line symmetry means we can (a)   a shape onto itself.

Point symmetry means we can ​ (b)   a shape onto itself.

• reflect
• translate

• dilate
• rotate

What kind of symmetry does this tetris piece have?

• Point symmetry

• Line symmetry

• Both point AND line symmetry

• None

What kind of symmetry does this tetris piece have?

• Line symmetry

• Point symmetry

• Both line AND point symmetry

• None

What kind of symmetry does each train line logo have?

Groups:

(a) No Symmetry

,

(b) Line Symmetry

,

(c) Point Symmetry

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• 
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How many sides does each polygon have?

• nonagon

• 
• decagon

• 
• hexagon

• 
• pentagon

• 
• octagon

• 

Which polygon always has a minimum rotation of 180° about its center to carry it onto itself?

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Which regular polygon has a minimum rotation of 36° about its center that carries the polygon onto itself?

• octagon

• decagon

• nonagon

• pentagon

Rigid motions are transformations that...

• preserve length and angle measure

• make figures bigger or smaller

• translate an image left or right

Which transformation would not carry the square onto itself?

• reflection over the y-axis

• reflection over the x-axis

• rotation of 180° around point (1, 0)

• rotation of 90° CW around point (1, 0)

Answer the Regents question.

• (1)

• (2)

• (3)

• (4)