(M7) Unit 6 - Lesson 3 (missing side lengths)

Multiple Choice

Triangles ABC and ANT are similar. Which side of triangle ABC corresponds to side AT?

ABC

ANT

• Side TC

• Side AC

• Side AB

• Side BC

Multiple Choice

Triangles ABC and ANT are similar. Which side of triangle ABC corresponds to side NT?

ABC

ANT

• Side TC

• Side AC

• Side AB

• Side BC

Multiple Choice

Triangles ABC and ANT are similar. Which side of triangle ANT corresponds to side AB?

ABC

ANT

• Side AN

• Side AC

• Side AB

• Side BC

Multiple Choice

Mr. Rose had his favorite picture of Andy reduced by a scare factor of $$k\ =\ \frac{1}{4}$$ to make wallet sized photos. Which picture was the "pre-image" ?

Graphing

Dilate the triangle with black points by a scale factor of $$\frac{1}{2}$$ . Drag your three points into the correct spot to form the reduced (smaller) image..

Dropdown

Mr. Rose had his glamor shot made and has an 8" by 6" photograph. He wants to make all his girlfriends a poster sized print and had it resized with a scale factor of 6. This will ​

Select answer

the ​ photograph.

Dropdown

Mr. Rose took a class photo of his 7th graders. Wow, they are ugly. So, he decided to change the size by a scale factor of 1/4 (one fourth). This will ​

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the ​ photograph...that way he doesn't have to look at them too closely.

Multiple Choice

Which proportion can be used to find x?

• $$\frac{15}{x}=\ \frac{4}{20}$$

• $$\frac{15}{x}=\ \frac{20}{4}$$

• $$\frac{9}{25}=\frac{x}{20}$$

• $$\frac{45}{9}=\frac{x}{20}$$