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We will recognize that the ratio of corresponding sides on similar shapes or proportional.

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I will prove that dilated shapes are proportional by using a proportion and explaining my reasoning.

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Over the next 2 weeks, we will be learning about Transformations. There are four types of transformations:

1. Translations

2. Reflections

3. Rotations

4. Dilations

Please copy the following document on a blank sheet of paper to use as a reference when working on all Transformations

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Use these notes as a reference when performing the assignment in Task 4.

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8.3 Proportionality. The student applies mathematical process standards to use proportional relationships to describe
dilations. The student is expected to:

C (R) Use an algebraic representation to explain the effect of a given positive rational scale factor applied to two-dimensional figures on a
coordinate plane with the origin as the center of dilation.

A (S) generalize that the ratio of corresponding sides of similar shapes are proportional, including a shape and its dilation.

B (S) compare and contrast the attributes of a shape and its dilation(s) on a coordinate plane.

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Please complete the Exercise 8.3A/B Similar Shapes using the link for your class period:

Exercise 8.3A/B Similar Shapes:
1st Period
2nd Period
4th Period
5th Period
7th Period
8th Period

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Similar figures are two figures having the same shape. The objects which are of exactly the same shape and size are known as congruent objects. For example, in real life you will see, both the front wheels of a car, both hands of a person etc. are examples of congruent figures or objects. But the similar shape objects have the same shape but their sizes are different.

This video will provide an introduction to Dilations.

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