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Illustrative Mathematics - Geometry - Unit 3 - Lesson 9

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Last updated 2 months ago
10 Questions
1.

What is the length of segment DF?

G.CO.8
G.SRT.2
G.CO.10
G.SRT.3
2.

In triangle ABC, angle A is 35º and angle B is 20º. Select all triangles which are similar to triangle ABC.

G.CO.8
G.SRT.2
G.CO.10
G.SRT.3
3.

Decide whether triangles ABC and DEC are similar. Explain or show your reasoning.

G.CO.8
G.SRT.2
G.CO.10
G.SRT.3
4.

Lin is trying to convince Andre that all circles are similar. Help her write a valid justification for why all circles are similar.

G.CO.8
G.SRT.2
G.CO.10
G.SRT.3
5.

Must these parallelograms be similar? Explain your reasoning.

G.CO.8
G.SRT.2
G.CO.10
G.SRT.3
6.
7.
8.

Quadrilaterals Q and P are similar.

What is the scale factor of the dilation that takes P to Q?

G.CO.8
G.SRT.2
G.CO.10
G.SRT.3
9.
10.
This lesson is from Illustrative Mathematics. Geometry, Unit 3, Lesson 9. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/2/3/9/index.html ; accessed 29/July/2021.

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