Scale Drawings and Similar Figures

Find missing side

• 5

• 7

• 9

• 11

• 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 new area if the rectangle is enlarged with a scale factor of 3?

• 912 cm²

• 724 cm²

• 864 cm²

• 1220 cm²

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

Find y.

• 144

• 18

• 72

• 12

What is the new perimeter if the rectangle is enlarged with a scale factor of 3?

• 40 cm

• 60 cm

• 80 cm

• 120 cm