Similarity Sequences and Scale Factor Decisions Worksheet
📝 Worksheet hard ⏱️ 22 minutes 10 problems
Similarity Sequences and Scale Factor Decisions Worksheet
Grade 8 Mathematics LearnCrux.com
Name:
Date:
Directions
- Fill in each blank carefully.
- Circle or mark the best answer for each multiple-choice question.
- Match each prompt to the best option before writing your answer.
- Use the larger space to show your thinking on word problems.
1. A dilation changes lengths by a scale __.
2. Which sequence could prove two figures are similar but not congruent?
3. Match the evidence to the conclusion: same size and shape after a rigid motion
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Answer:
4. If a side length changes from 4 to 10, the scale factor is __.
5. Why is a dilation not enough to prove congruence?
6. Which transformation always preserves lengths?
7. Match the description to the best term: same shape with proportional side lengths
Match with:
Answer:
8. A scale factor between 0 and 1 will __ a figure.
9. Which question should students ask before calling figures similar?
10. Why should students describe the full sequence of transformations instead of only the final result?
📋 Teacher Answer Key
1. factor
2. a dilation followed by a translation
3. congruent
4. 2.5
5. A dilation changes size, so the figures may keep the same shape without staying the same size.
6. rotation
7. similar figures
8. reduce
9. Do corresponding side lengths change by one consistent ratio?
10. The sequence explains how one figure maps onto the other and provides evidence for congruence or similarity.