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Centroid, Circumcenter, Orthocenter

Resource:
Centroid, Circumcenter, Orthocenter

Visualize what constructions of the centroid, circumcenter, and orthocenter would look like based on descriptions of those constructions.

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• Unit 3

#### Similarity and Proof

Congruence and Similarity Proof

Resource:
Congruence and Similarity Proof

Students will connect givens with proofs by distinguishing between congruence and similarity proofs.

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• Unit 3

#### Similarity and Proof

Developing a sense of scale

Resource:
Developing a sense of scale

Focus on proportions and proportional relationships between similar figures.

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• Unit 3

#### Similarity and Proof

Dilate Triangles

Resource:
Dilate Triangles

Students will dilate triangles using a compass.  Students will analyze the relationship between angle measures and segment/side lengths of pre-images and images.

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• Unit 3

#### Similarity and Proof

Dilating a cartoon character

Resource:
Dilating a cartoon character

Students will use a comass to dilate an image.  Then students will analyze the properties of a dilation based on their images.

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• Unit 3

#### Similarity and Proof

Dilations and Similarity #1

Resource:
Dilations and Similarity #1

Use the structure of similar triangles to find a missing length.

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• Unit 3

#### Similarity and Proof

Dilations and Similarity #2

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Dilations and Similarity #2

Use the structure of a dilated triangle to find a missing length.

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• Unit 3

#### Similarity and Proof

Dilations and Similarity #3

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Dilations and Similarity #3

Use the repeated structure of a set of similar triangles to find the value of a missing side length.

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• Unit 3

#### Similarity and Proof

Dilations and Similarity #4

Resource:
Dilations and Similarity #4

Use the structure of similar triangles to find a missing length.

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• Unit 3

#### Similarity and Proof

Dilations and Similarity #5

Resource:
Dilations and Similarity #5

Use the structure of similar triangles to find a missing length.

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• Unit 3

#### Similarity and Proof

Dilations and Similarity #6

Resource:
Dilations and Similarity #6

Use the structure of a triangle diagram to find a ratio of two lengths.

All Resources From:
• Unit 3

#### Similarity and Proof

Dilations and Triangles

Resource:
Dilations and Triangles

Use the structure of paired triangles and a set of dilation instructions to make connections between the two representations.

All Resources From:
• Unit 3