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IM Geometry Unit 2 Lesson 10

Figure 1

Figure 1

Is this shape rigid or flexible?

Which triangle congruence shortcut can you use to prove triangle QSO is congruent to triangle PSO?

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  • A
  • B
  • C

Figure 2

Figure 2

Is this shape rigid or flexible?

Which triangle congruence shortcut can you use to prove triangle JYH is congruent to triangle JYF?

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  • A
  • B
  • C

Figure 3

Figure 3

Is this shape rigid or flexible?

Which triangle congruence shortcut can you use to prove triangle KNL is congruent to triangle MNL?

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  • A
  • B
  • C

Figure 4

Figure 4

Is this shape rigid or flexible?

Which triangle congruence shortcut can you use to prove triangle STV is congruent to triangle UVT?

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  • A
  • B
  • C

Figure 5

Figure 5

Is this shape rigid or flexible?

Which triangle congruence shortcut can you use to prove triangle ABC is congruent to triangle CDA?

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  • A
  • B
  • C

Figure 6

Figure 6

Is this shape rigid or flexible?

Which triangle congruence shortcut can you use to prove triangle ZIB is congruent to triangle ABI? (You will need to imagine the auxiliary line needed.)

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  • A
  • B
  • C
IM G Unit 2 Lesson 10 from IM Geometry by Illustrative Mathematics, https://im.kendallhunt.com/HS/students/2/2/10/index.html. Licensed under the Creative Commons Attribution 4.0 license, https://creativecommons.org/licenses/by/4.0/.