NumihanaA corresponding side is 28 cm. Enlarge the shape by scale factor 5. Find the new side length, in cm.
Answer: ________________
LEARN, PRINT & PRACTISE
Use scale factors.
Use scale factors
Numihana · England Year 6
Use scale factors
Practice sheet
Name: ______________
Date: ______________
Use scale factors
A corresponding side is 26 cm. Enlarge the shape by scale factor 4. Find the new side length, in cm.
Answer: ________________
A corresponding side is 11 cm. Enlarge the shape by scale factor 3. Find the new side length, in cm.
Answer: ________________
A corresponding side is 6 cm. Enlarge the shape by scale factor 4. Find the new side length, in cm.
Answer: ________________
A corresponding side is 2 cm. Enlarge the shape by scale factor 4. Find the new side length, in cm.
Answer: ________________
A corresponding side is 4 cm. Enlarge the shape by scale factor 3. Find the new side length, in cm.
Answer: ________________
Numihana · England Year 6
Use scale factors
Answer key
Name: ______________
Date: ______________
Use scale factors
A corresponding side is 28 cm. Enlarge the shape by scale factor 5. Find the new side length, in cm.
Answer: 140
A corresponding side is 26 cm. Enlarge the shape by scale factor 4. Find the new side length, in cm.
Answer: 104
A corresponding side is 11 cm. Enlarge the shape by scale factor 3. Find the new side length, in cm.
Answer: 33
A corresponding side is 6 cm. Enlarge the shape by scale factor 4. Find the new side length, in cm.
Answer: 24
A corresponding side is 2 cm. Enlarge the shape by scale factor 4. Find the new side length, in cm.
Answer: 8
A corresponding side is 4 cm. Enlarge the shape by scale factor 3. Find the new side length, in cm.
Answer: 12
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The skill behind this activity
Use scale factors
Department for Education: mathematics programmes of study ↗
Year 6 → Ratio and proportion · Selected statutory skill. Pack 2.2.0 · source checked 2026-10-12.
For teachers and parents
Multiply each corresponding length by the same scale factor. Compare the original and new shapes to explain that their angles stay equal and their side-length ratios stay consistent.
A common slip
Match corresponding lengths. A length scale factor does not directly give an area scale factor.
Worked example
A corresponding side is 9 cm. Enlarge the shape by scale factor 4. Find the new side length, in cm.
Answer: 36
Multiply each corresponding length by the same scale factor. Compare the original and new shapes to explain that their angles stay equal and their side-length ratios stay consistent.