Similarity

Grade 7 Maths — Similarity: 25 practice questions with instant scoring and explanations.

1. Evaluate 4x + 5 where x=2
2. Evaluate 2x + 6 where x=15
3. Evaluate 3x + 2 where x=16
4. Similar figures have same:
5. All circles are:
6. All squares are:
7. Two rectangles 3×4 and 6×8 are:
8. Two rectangles 3×4 and 6×10 are:
9. Scale factor 2 means new figure is:
10. If two triangles have equal angles:
11. Similar triangles have sides in:
12. A photo enlarged 3x is ___ to original:
13. If sides of similar triangles are 3:5, perimeters ratio:
14. Two equilateral triangles are always:
15. Two isosceles right triangles are:
16. Ratio of areas of similar figures with sides 2:3:
17. If △ABC ~ △DEF, AB/DE = BC/EF means:
18. A 4cm × 6cm rectangle similar to 6cm × ?:
19. A 5cm × 10cm rectangle similar to 3cm × ?:
20. Two regular hexagons are:
21. Scale factor 1 means figures are:
22. If triangles similar with ratio 1:4, area ratio:
23. Map scale 1:1000, 5cm on map = real:
24. Two similar pentagons have angles that are:
25. Enlargement factor 0.5 means: