Dilations Notes

A dilation is the enlargement or reduction of a figure. Dilations result in _______________ figures. (Refer to "Dilation Notes & Examples" on or around page 77.)

• square

• triangle

• congruent

• similar

On page 74 "Module 3 Dilations," what is the measure of angle E?

• 120°

• 110°

• 90°

• 115°

On page 81, it states the following: "The coordinates of figure ABC are A(3, 2), B(5, 7), C(8, 2).  The figure is rotated 90° counterclockwise around the origin and dilated with a scale factor of 3/2 centered at the origin." What are the coordinates after this sequence of transformations for point C"?  

• (-3, 12)

• (-2, 8)

• (-3, 4.5)

• (-7, 5)

A dilation is a transformation that stretches or shrinks a figure from a given point. Dilations result in _______________ figures. (Refer to "Dilation Notes & Examples" on or around page 92.)

• square

• triangle

• congruent

• similar

What type of dilation is represented? blue to purple

• Enlargement

• Reduction

What type of dilation is represented? blue to green

• Enlargement

• Reduction

What type of dilation is represented? black to blue

• Enlargement

• Reduction

What type of dilation is represented? blue to yellow

• Enlargement

• Reduction

What type of dilation is represented? Purple to orange

• Enlargement

• Reducton

The scale factor for this dilation is:

Mathematical Equivalence

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