Unit 4 Test

If the scale factor is less than 1, what will the new figure be?

In a dilation, what mathematical operation is used with scale factor?

A dilation preserves which characteristic?

• similarity

• congruence

An extended ratio is a comparison of 2 or more quantities.

• True
• False

The ratio of the measures of complementary angles is 4 to 5. Find the measure of the smallest angle.

• 10 degrees

• 40 degrees

The ratio measure of the sides of a triangle is 1:9:7. If the perimeter is 323, what is the measure of the shortest side?

• 17.5

• 12.5

• 19

• 10

• 2.10

• 4.55

• 3

• -1.52

• 1.7

• 4

• 3.1

• 5.2

• -2

• 2

• 36

• -36

If quadrilateral ABCD was dilated by a scale factor of 7, with the origin of the center of dilation, what would the coordinates of 'c' be?