IM 8.2.3 Practice: Dilations with No Grid

Segment  measures 3 cm. Point  is the center of dilation. How long is the image of  after a dilation with . . . Scale factor 5?

Scale factor 3.7?

Scale factor ?

Scale factor ?

Here are points A and B. Plot the points for each dilation described. C is the image of B using A as the center of dilation and a scale factor of 2.

Here are points A and B. Plot the points for each dilation described. D is the image of A using B as the center of dilation and a scale factor of 2.

Here are points A and B. Plot the points for each dilation described. E is the image of B using A as the center of dilation and a scale factor of 1/2.

Here are points A and B. Plot the points for each dilation described. F is the image of A using B as the center of dilation and a scale factor of 1/2.

Make a perspective drawing. Include in your work the center of dilation, the shape you dilate, and the scale factor you use.

Triangle is a scaled copy of triangle . Side measures 12 cm and is the longest side of . Side measures 8 cm and is the longest side of . Triangle  is a scaled copy of triangle  with what scale factor?

Triangle  is a scaled copy of triangle  with what scale factor?

The diagram shows two intersecting lines. Find the missing angle measures.

Show that the two triangles are congruent. Find the side lengths of DEF and the angle measures of ABC.