TEKS.MATH.8.3A

State the postulate that proves these triangles are similar.

• SSS
• AA
• SAS
• Not similar

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TEKS.MATH.8.3A

TEKS.MATH.9-12.III.B.3

What side corresponds with AB? 

• BC
• FE
• DE
• FD

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TEKS.MATH.8.3A

A dilation is which of the following: 

• An enlargement
• A reduction
• Either an enlargement or a reduction
• Neither an enlargement or a reduction

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TEKS.MATH.8.3A

What is the scale factor from ΔDEF to ΔABC?

• 1/2
• 7/3
• 2
• 10/3

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TEKS.MATH.8.3A

TEKS.MATH.7.5C

Are the triangles similar?

• Yes
• No

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TEKS.MATH.8.3A

TEKS.MATH.8.8D

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75
• 9.75
• 10
• 12

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TEKS.MATH.8.3A

What do you call a Transformation that Enlarges or Reduces a shape or figure?

• Translation
• Dilation
• Rotation

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TEKS.MATH.8.3A

Enlargement or reduction?  Find the scale factor!

• It's a reduction; the scale factor is 2.
• It's an enlargement; the scale factor is 2.
• It's an enlargement; the scale factor is 1/2.
• It's a reduction; the scale factor is 1/2.

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TEKS.MATH.8.3A

TEKS.MATH.7.5C

TEKS.MATH.7.5A

A dilation always produces a similar figure. Similar figures have the same ______ but different ______. 

• measure; shapes
• sizes; shapes
• value; measures
• shape; sizes

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TEKS.MATH.8.3A

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because they are the same shape and side lengths are proportional.
• No, not similar because they are the same shape, but side lengths are not proportional.
• Yes, same shape
• No, different sizes

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TEKS.MATH.8.3A