Scale Factor with Missing Side

Q1. What is the value of 0.5?

• 0.25

• 0.5

• 2

• 1/2

If the scale factor is 4, what is the measurement of x?

• 20 m

• 24 m

• 16 m

• 4 m

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

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

• 21

• 1.25

• 20

• 4

What is ratio of any two corresponding sides?

• Scale Factor

• Corresponding Sides

• Similar Figures

Find the missing side measurement.

• 12

• 72

•  720

What is the value of X?

• X=4

• X=6

• X=3

• X=2

Emma's model is a scaled-down version of Zoe's. What is the ratio of any two corresponding sides?

• Scale Factor

• Corresponding Sides

• Similar Figures

Answer explanation

The ratio of any two corresponding sides in similar figures is known as the Scale Factor. This term specifically describes the proportional relationship between the lengths of sides in similar shapes.

The image shows​​ (a)   and the scale factor is​​ (b)   ​

• an enlargement

• 3

• a reduction

• 5

• 4

• 2

The blue triangle is the preimage, the green triangle is the image. The image shows​​ (a)   and the scale factor is​ (b)   ​

• an enlargement

• 2

• a reduction

• 5

• 4