IM 8.2.5 Practice: More Dilations

Quadrilateral ABCD is dilated with center (0,0), taking B to B'. Draw A'B'C'D'.

Triangles B and C have been built by dilating Triangle A. Find the center of dilation.

Triangle [math]B[/math] is a dilation of [math]A[/math] with approximately what scale factor?

Triangle [math]A[/math] is a dilation of [math]B[/math] with approximately what scale factor?

Triangle [math]B[/math] is a dilation of [math]C[/math] with approximately what scale factor?

Here is a triangle. Draw the dilation of triangle ABC, with center (0,0), and scale factor of 2. Label this triangle A'B'C'.

On the triangle from above, draw the dilation of triangle [math]ABC[/math], with center [math](0,0)[/math], and scale factor of [math]\frac{1}{2}[/math]. Label this triangle [math]A''B''C''[/math]. Is [math]A''B''C''[/math] a dilation of triangle [math]A'B'C'[/math]? If yes, what are the center of dilation and the scale factor?

Triangle [math]DEF[/math] is a right triangle, and the measure of angle [math]D[/math] is [math]28°[/math]. What are the measures of the other two angles?

IM 8.2.5 Practice: More Dilations

Quadrilateral ABCD is dilated with center (0,0), taking B to B'. Draw A'B'C'D'.

Triangles B and C have been built by dilating Triangle A. Find the center of dilation.

Here is a triangle. Draw the dilation of triangle ABC, with center (0,0), and scale factor of 2. Label this triangle A'B'C'.

Information: IM 8.2.5 Practice: More Dilations