Scale Drawings, Scale Factor and Similar Figures

• 1.2 km

• 4.3 km

• 5.8 km

• 8.4 km

• 1.5

• 6

• 8

• 10.7

What is the scale factor if the triangle on the left is the original?

• 2

• 3/2

• 2/3

• 1/2

The pair of figures is similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

What is the scale factor from triangle ABC to triangle DEF?

• 1:2

• 7:3

• 2:1

• 10:3

What is the scale factor of the dilation of ABC to XYZ?

• 2

• 3

What is the scale factor from the large triangle to the small triangle?

• 1/2

• 2/3

• 3/4

• 2

What is the scale factor from the large triangle to the small triangle?

• 1:2

• 4:3

• 3:4

• 2:1

What is the scale factor of the dilation of ABC to XYZ?

• 2

• 3

What is the scale factor of the surface area of these cones?

• 3:5

• 9:25

• 27:125

• 15:60