Answer Key — HSG.SRT.A.2

For parents and tutors

Do not share with students before practice tests.

Practice Problems — Sets 1–10

| Set | Guidance | | --- | --- | | Set 1 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 2 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 3 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 4 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 5 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 6 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 7 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 8 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 9 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 10 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. |

Practice Problems — Sets 11–20

| Set | Guidance | | --- | --- | | Set 11 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 12 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 13 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 14 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 15 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 16 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 17 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 18 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 19 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. | | Set 20 | Given two figures, use the definition of similarity in terms of simil… — verify written work and accept reasonable drawings. |

Review tiers 1–10

Checklists are parent-judged.
Written items: verify against practice set patterns.
Standard text: Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.

Practice test scoring

| Tier | Pass guidance | | --- | --- | | 1–3 | Most oral tasks smooth; majority of written correct | | 4–6 | 7/10+ total with clear understanding | | 7–8 | 9/12+ with explanations | | 9–10 | Near-perfect; ready to move on |

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