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Classifying triangles and quadrilaterals

Students practise classifying triangles and quadrilaterals by sides and angles using short multiple-choice and short-answer questions, including identifying a right angle, describing perpendicular lines, and naming shapes from given properties. Level: 4th grade.

By Edform · Mathematics · Grade 4 · Published Oct 28, 2026 · New

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Questions

  1. A triangle has three sides of equal length. How is it classified by its sides?
  2. Which description identifies a right triangle?
  3. A quadrilateral has four right angles. Its opposite sides are equal, but its neighboring sides have different lengths. What is it?
  4. What does it mean for two lines to be perpendicular?
  5. Put these angle measures in order from smallest to largest.
  6. Match each geometry term with its meaning.
  7. Complete the sentence about quadrilaterals.
  8. Choose the correct angle names to complete the sentence.
  9. Sort each shape description into the correct group: Triangle or Quadrilateral.
  10. Sort each angle description into the correct group: Right angle or Not a right angle.

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