Geometry: Dilations of Reduction and Enlargement

When a geometric figure undergoes a dilation with a scale factor 'r' where r < 1, what happens to the figure?

• It gets larger

• It gets smaller

• It stays the same size

• It changes its shape

If a geometric figure is dilated with a scale factor 'r' where r > 1, what is the result?

• The figure becomes smaller

• The figure becomes larger

• The figure remains the same size

• The figure rotates

A triangle has a vertex at A(-3, 3). If the triangle undergoes a dilation with a scale factor of r = 1/3, what are the coordinates of the new vertex A'?

• (-9, 9)

• (0, 0)

• (-1, 1)

• (1, -1)

A square has a vertex at K(-1, 2). If the square undergoes a dilation with a scale factor of r = 2, what are the coordinates of the new vertex K'?

• (-1, 4)

• (-2, 2)

• (-2, 4)

• (2, -4)