Test
Dilations and similar figures
Students practise scale factors and similarity using dilation questions, including coordinate images after dilation about the origin, scale factors from similar side lengths, ordering steps for dilations from a center, and matching scale factors to effects. Level 8th grade.
By Edform · Mathematics · Grade 8 · Published Oct 28, 2026 · New
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Questions
- Point A(3, −2) is dilated by a scale factor of 2 about the origin. What are the coordinates of its image?
- A small triangle has side lengths 6, 9, and 12 inches. A similar larger triangle has side lengths 10, 15, and 20 inches. What is the scale factor from the small triangle to the larger one?
- Put the steps for dilating a figure from a chosen center in the correct order.
- Match each scale factor to its effect on a figure.
- Complete the sentence using the scale shown.
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