Geometry Scale

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

• 0.25
• 0.5
• 2
• 1/2

The scale drawing car length is 3 cm. If the scale is 1 cm:4 ft, what is the actual car length?

• 12 feet

• 16 feet 

• 10 feet

• 4 feet

Enlargement or reduction?  Find the scale factor!

Hint: to find the scale factor write a ratio of your image to pre-image coordinate.

• It's a reduction; the scale factor is 2.

• It's an enlargement; the scale factor is 2.

• It's an enlargement; the scale factor is 1/2.

• It's a reduction; the scale factor is 1/2.

Choose the correct scale factor:

• 2.5

• 1.5

• 3.5

• 4

Triangle DGF is a scale copy of Triangle EGD. Find the value of x.

• 4.8

• 6.4

• 7.5

• 8

Enlargement or reduction?  Find the scale factor!

• It's a reduction; the scale factor is 2.

• It's an enlargement; the scale factor is 2.

• It's an enlargement; the scale factor is 1/2.

• It's a reduction; the scale factor is 1/2.

A Lego model of the Burj Khalifa was created using a scale of 1 foot = 650 feet. If the lego model reaches a height of 4.18 feet, what is the height of the Burj Khalifa?

• 2,717 feet

• 2, 152 feet

• 2, 376 feet

A scale drawing of Mt. Marcy is 17.8 inches high. Determine the actual height of Mt. Marcy if the scale used for the drawing was 1.5 inches = 450 feet.

• 8,010 feet

• 5,340 feet

• 12,015 feet