Unit 3 Lessons 4&5 Dilation and Scale Factor Extra Practice

What is the scale factor if Triangle DEF is the image of a dilation of triangle ABC?

Segment EF is dilated. Select all the segments that are the possible image of the dilation.

• AB

• DK

• GH

• IJ

• LM

Segment GH is dilated. Select all the segments that are the possible image of the dilation.

• AB

• DK

• EF

• IJ

• LM

Is Triangle ABC the image of the dilation of Triangle DEF?

• Yes, because the scale factor is 2.

• Yes, because the scale factor is 0.5.

• Yes, because the scale factor is 0.6

• Yes, because the scale factor is 1.67.

Triangle DEF is the image of the dilation of Triangle ABC. What is the length of DF (value of x)?

Triangle DEF is the image of the dilation of Triangle ABC. If the measure of Angle A is 77 degrees, what is the measure of Angle D?

Triangle NOP is dilated using Center N to create Triangle N'O'P'. What is the scale factor of the dilation?

Triangle NOP is dilated using Center N to create Triangle N'O'P'. What is the length of O'P' (value of y)?

Triangle NOP is dilated using Center N to create Triangle N'O'P'. If the measure of Angle N'O'P' is 41 degrees, what is the measure of Angle NOP?

Figure PQRST is the image of the dilation of Figure ABCDE. What is the scale factor?