Year 4 Geometry
Classify triangles and quadrilaterals; identify right, acute, and obtuse angles; plot coordinates.
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Worked examples
Two lines are PERPENDICULAR. What does this mean?
- They meet at a right angle (90°).
- They never meet.
- They are equal length.
- They form a square.
Answer: They meet at a right angle (90°).. Perpendicular lines meet at right angles.
How many lines of symmetry does an EQUILATERAL TRIANGLE have?
- 3
- 1
- 0
- 2
Answer: 3. Equilateral triangle: 3 sides equal → 3 lines of symmetry (one through each vertex).
Why do parallel lines never meet?
- Because they are always the same distance apart — that distance never changes.
- Because they are straight.
- Because they were drawn that way.
- Because angles are equal.
Answer: Because they are always the same distance apart — that distance never changes.. Parallel = equidistant. Equal distance means they never converge.
Skills in this topic
Frequently asked questions
- What is covered in Year 4 Geometry?
- Classify triangles and quadrilaterals; identify right, acute, and obtuse angles; plot coordinates. Key skills include 2D Shapes, 3D Shapes, Angles.
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