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

Congruent by

• SSS
• SAS
• ASA
• AAS

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

ABCDE ∼ GHJDF. ∠E ≅

• ∠H
• ∠D
• ∠F
• ∠J

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

TEKS.MATH.9-12.III.A.1

The triangles are similar, solve for the question mark.

• 8
• 12.5
• 18
• 24

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

Determine if the triangles are similar. Justify.

• Yes, by SSS.
• Yes, by SAS. Scale Factor is 1:2.
• Yes, by SAS. Scale Factor is 3:1.
• No, not similar.

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

TEKS.MATH.9-12.VIII.A.4

What assumption would you make to start the indirect proof of ∆ABC≅∆DEF?

• ∆ABC≠∆DEF
• ∆ABC≇∆DEF
• <ABC≠<DEF
• AB≅DE

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

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

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

Are these triangles congruent?

• Yes, by SSS
• Yes, by SAS
• Yes, by AAS
• Yes, by HL

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

How are the triangles congruent?

• SAS
• SSS
• ASA
• HL

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

If three sides of one triangle are proportional to three sides of another triangle, then the two triangles are similar.

• AAA
• SAS
• Not similar
• SSS

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

TEKS.MATH.9-12.III.A.2

Which transformations keep figures congruent?

• translation, reflection, and dilation

• reflection, rotation, and dilation

• dilation, translation, reflection, and rotation

• translation, reflection, and rotation

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