Year 4 Geometry
Classify triangles and quadrilaterals; identify right, acute, and obtuse angles; plot coordinates.
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Worked examples
RookieRead and interpret directly.
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.
ProCompare and infer.
Look at this shape: 4 sides, parallel opposite sides, NOT right angles. What shape?
- Parallelogram
- Rectangle
- Square
- Trapezium
Answer: Parallelogram. Parallelogram: opposite sides parallel + equal; angles NOT 90°.
GuruMulti-step reasoning.
A regular hexagon's interior angles sum to 720°. What is the size of EACH angle?
- 120°
- 180°
- 90°
- 100°
Answer: 120°. Regular hexagon = 6 equal angles. 720 ÷ 6 = 120°.
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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