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Measurement & Geometry

Grade 4 · On-level practice · 10 questions · Version PG-1L8KITO-CIW8

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1.Classify a 30° angle.
2.Reflect (19, 2) across the vertical line x = 22.
3.Classify a 110° angle.
4.Reflect (13, 5) across the vertical line x = 16.
5.Classify a 80° angle.
6.Reflect (4, 13) across the vertical line x = 10.
7.Classify a 40° angle.
8.Reflect (12, 1) across the vertical line x = 14.
9.Classify a 50° angle.
10.Reflect (14, 8) across the vertical line x = 20.

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 4
  1. Classify a 30° angle.Acute
  2. Reflect (19, 2) across the vertical line x = 22.(25, 2)
  3. Classify a 110° angle.Obtuse
  4. Reflect (13, 5) across the vertical line x = 16.(19, 5)
  5. Classify a 80° angle.Acute
  6. Reflect (4, 13) across the vertical line x = 10.(16, 13)
  7. Classify a 40° angle.Acute
  8. Reflect (12, 1) across the vertical line x = 14.(16, 1)
  9. Classify a 50° angle.Acute
  10. Reflect (14, 8) across the vertical line x = 20.(26, 8)

Worked example

Sketch and label the quantities before selecting a measurement or geometry operation.

Common mistake

Using the right numbers with the wrong unit or formula.

Helpful hint

Write the unit beside every measurement.