TEKS.MATH.8.3A

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 
• proportional, congruent 
• congruent, congruent
• proportional, proportional

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TEKS.MATH.8.3A

A dilation produces a similar figure

• True
• False

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TEKS.MATH.8.3A

Does the image show a Dilation?

• Yes
• No

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TEKS.MATH.8.3A

A power pole 10 m tall casts a shadow 8 meters long, at the same time that a building nearby casts a shadow 14 m long.  How tall is the building?

• 9 m
• 15.2 m
• 12 m
• 17.5 m

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TEKS.MATH.8.3A

Dilations are ________ but not congruent.

• Similar
• Flipped
• Rotated
• Congruent

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TEKS.MATH.8.3A

Is this a dilation from the origin?

• yes
• no

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TEKS.MATH.8.3A

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

• 90 ft
• 7.5 ft 
• 4.5 ft
• 45 in

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TEKS.MATH.8.3A

WHAT IS THE SCALE FACTOR

• X+4, Y+10

• 10/4 X , 10/4 Y

• .4X , .4Y

• 6X, 6Y

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TEKS.MATH.8.3A

When can a dilation produces a similar figure?

• When the scale factor is greater than one

• When the scale factor is equal to one

• When the x value gets bigger and the y value gets smaller.

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TEKS.MATH.8.3A

The pair of figures is similar. Find the missing side.

• x = 20
• x = 12
• x = 5
• x = 4

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TEKS.MATH.8.3A