NumihanaClassify one horizontal and one vertical line crossing at a right angle: parallel, perpendicular or neither.
Answer: parallel / perpendicular / neither
LEARN, PRINT & PRACTISE
Parallel and perpendicular lines.
Use parallel and perpendicular vocabulary to describe lines.
Numihana · England Year 4
Parallel and perpendicular lines
Practice sheet
Name: ______________
Date: ______________
Use parallel and perpendicular vocabulary to describe lines.
Classify two horizontal lines: parallel, perpendicular or neither.
Answer: parallel / perpendicular / neither
Classify two lines crossing at an acute angle: parallel, perpendicular or neither.
Answer: parallel / perpendicular / neither
Classify two horizontal lines: parallel, perpendicular or neither.
Answer: parallel / perpendicular / neither
Classify two lines crossing at an acute angle: parallel, perpendicular or neither.
Answer: parallel / perpendicular / neither
Classify one horizontal and one vertical line crossing at a right angle: parallel, perpendicular or neither.
Answer: parallel / perpendicular / neither
Numihana · England Year 4
Parallel and perpendicular lines
Answer key
Name: ______________
Date: ______________
Use parallel and perpendicular vocabulary to describe lines.
Classify one horizontal and one vertical line crossing at a right angle: parallel, perpendicular or neither.
Answer: perpendicular
Classify two horizontal lines: parallel, perpendicular or neither.
Answer: parallel
Classify two lines crossing at an acute angle: parallel, perpendicular or neither.
Answer: neither
Classify two horizontal lines: parallel, perpendicular or neither.
Answer: parallel
Classify two lines crossing at an acute angle: parallel, perpendicular or neither.
Answer: neither
Classify one horizontal and one vertical line crossing at a right angle: parallel, perpendicular or neither.
Answer: perpendicular
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The skill behind this activity
Use parallel and perpendicular vocabulary to describe lines.
Department for Education: mathematics programmes of study ↗
Year 4 → Geometry → Properties of shapes · Selected statutory skill. Pack 2.2.0 · source checked 2026-10-12.
For teachers and parents
Parallel lines stay the same distance apart and never meet when extended. Perpendicular lines meet at a right angle. A pair meeting at another angle is neither.
A common slip
Crossing lines are not automatically perpendicular; the angle must be ninety degrees.
Worked example
Classify two horizontal lines: parallel, perpendicular or neither.
Answer: parallel
Parallel lines stay the same distance apart and never meet when extended. Perpendicular lines meet at a right angle. A pair meeting at another angle is neither.