Worksheets — Set 18

Geometry · Geometric reasoning and proofs (intro)

Print and write your answers. Use diagrams to show thinking.

Warm-up

1. Name the transformation: slide right 20 units: ___ 2. Sequence: reflect then rotate 270°. Describe result. ___ 3. Corresponding parts of congruent triangles: list two pairs. ___

_See printable PDF for diagram._

Written practice

1. Name the transformation: slide right 19 units: ___ 2. Sequence: reflect then rotate 180°. Describe result. ___ 3. Corresponding parts of congruent triangles: list two pairs. ___ 4. Which criterion? SSS, SAS, ASA, or AAS? ___ 5. Complete the proof step: ∠A ≅ ∠D because ___ 6. Draw a diagram and mark congruent parts. 7. Name the transformation: slide right 22 units: ___ 8. Sequence: reflect then rotate 90°. Describe result. ___

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More written practice

1. Name the transformation: slide right 25 units: ___ 2. Sequence: reflect then rotate 0°. Describe result. ___ 3. Name the transformation: slide right 28 units: ___ 4. Sequence: reflect then rotate 270°. Describe result. ___ 5. Name the transformation: slide right 31 units: ___ 6. 3 + 7 = ___

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Patterns and rules

1. Name the transformation: slide right 36 units: ___ 2. Sequence: reflect then rotate 270°. Describe result. ___ 3. Corresponding parts of congruent triangles: list two pairs. ___

_See printable PDF for diagram._

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Stretch

1. Name the transformation: slide right 44 units: ___ 2. Sequence: reflect then rotate 270°. Describe result. ___

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Parent tip: Name the transformation sequence