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8.2.4 Practice

Posljednje ažuriranje almost 2 years ago

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"Source: Open Up Resouces (Download for free at openupresources.org.)"

Pitanje 1

1.

Triangle ABC is dilated using D as the center of dilation with scale factor 2.
The image is triangle . Clare says the two triangles are congruent, because their angle measures are the same. Do you agree?

Yes, I agree with Clare.

No, I belive Clare is wrong.

Pitanje 2

2.

On graph paper, sketch the image of quadrilateral PQRS under the following dilations:
The dilation centered at R with scale factor 2.

Pitanje 3

3.

On graph paper, sketch the image of quadrilateral PQRS under the following dilations:
The dilation centered at O with scale factor \frac{1}{2}.

Pitanje 4

4.

On graph paper, sketch the image of quadrilateral PQRS under the following dilations:
The dilation centered at S with scale factor \frac{1}{2}.

Pitanje 5

5.

The diagram shows three lines with some marked angle measures.
Find the missing angle measures marked with question marks.

Pitanje 6

6.

Describe a sequence of translations, rotations, and reflections that takes Polygon P to Polygon Q.

Pitanje 7

7.

Point B has coordinates (-2,-5). After a translation 4 units down, a reflection across the y-axis, and a translation 6 units up, what are the coordinates of the image?