Mathematical+Reflections+p.40

Marta Fiorillo Block B February 14, 2011

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Big Idea: Many things in our world are mathematically similar and we can use this to understand and describe the world around us. =Mathematical Reflection = pg. 40

We can decide that two figures b y looking at the general shape, angle measure and side lengths.
 * 1. How can you describe whether two figures are similar?**

The scale factor between two figures tell me h ow much the shape got bigger by
 * 2. What does the scale factor between two similar figures tell you?**

We can use a scale factor of two similar figures to compare the two similar figures.
 * 3. Explain how can you use the scale factor between two similar figures. Use an example to explain your thinking.**

1. You just have to square the scale factor to find how the area of an enlarged figure compares to the area of the original figure.
 * 4. Explain how can you use the scale factor to determine how the area of an enlarged figure compares to the area of the original figure.**

//**Summary Of My Findings **//
In this investigation, we learned about determining whether the shapes we saw were similar by comparing corresponding parts. We also looked at rep-tiles, shapes whose copies can be put together to make larger, similar shapes. I also learned more about scale factors.