Similarity Transformation

Is the dilation from A to B an enlargement or a reduction?

• enlargement

• reduction

Is the dilation from A to B an enlargement or a reduction?

• enlargement

• reduction

What is the scale factor of the dilation from A to B ?

• 1/4

• 1/2

• 1

• 2

What is the scale factor of the dilation from A to B ?

• 2

• 1

• 1/2

• 1/3

The triangles are similar. Which series of transformations maps ABC onto DEF?

• reflection followed by a dilation

• rotation followed by a dilation

• translation followed by a dilation

• translation followed by a rotation

The triangles are similar. Which series of transformations maps ABC onto DEF?

• translation followed by a rotation

• translation followed by a dilation

• rotation followed by a dilation

• reflection followed by a dilation

A dilation with center (0,0) and a scale factor of 1/2 maps ABC to ADE.

• Yes. A dilation with center (0,0) and a scale factor of 1/2 maps ABC to ADE.

• Yes. A dilation with center (0,0) and a scale factor of 2 maps ABC to ADE.

• Yes. A translation 2 units up and 4 units right maps ADE to ABC.

• No. ABC is not similar to ADE.

Determine two similarity transformations that would map triangle 1 onto triangle 2.

• Rotated across the y-axis 180 degrees around the origin and then dilated from the origin by a scale factor of 3

• Rotated 90 degrees clockwise or counterclockwise across the x-axis and then dilated from the origin by a scale factor of 4

• Reflected across the line, y=-x, and then dilated from the origin by a scale factor of 1/4

• Rotated 180 degrees around the origin and then dilated from the origin by a scale factor of 4

ΔOBC is similar to ΔOGT because: (choose the best answer)

• ΔOBC can be dilated about point O by a scale factor of 1/2, and then rotated 90 degrees about point O.

• ΔOBC can be dilated about point G by a scale factor of 1/2, and then reflected over the x- axis

• They aren't similar

• They map to each other with similarity transformations.

Determine two similarity transformations that would map triangle 1 onto triangle 2.

• Reflected across the y-axis and then dilated from the origin by a scale factor of 2

• Reflected across the x-axis and then dilated from the origin by a scale factor of 1/2

• Reflected across the y-axis and then dilated from the origin by a scale factor of 1/2

• Rotated across the y-axis and then dilated from the origin by a scale factor of 2