Digits, Grade 8, Volume 2, Homework Helper

### 10-3: Relating Similar Triangles and Slope

#### Part 1

Example Comparing Triangles to Their Dilations

Draw the triangle that is the image of the given triangle after a dilation with center (0,22) and a scale factor of 2. Look at the ratio of the rise to the run of each triangle. How do the ratios compare? Explain.

Solution

The ratio of the rise to the run of the given triangle is 3 halves . The ratio of the rise to the run of the image triangle is 6 fourths , which is equivalent to 3 halves . So, the ratios of the rise to the run of the two triangles are the same.

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