Scaled Copies and Corresponding Parts

Q1 Benchmark Review

​Part 1: Scaled Copies and Scale Drawings

​Scaled Copies

• ​ Remember scaled copies are not DISTORTED in any way!

• ​ Scale factor must be applied to every side!

Multiple Choice

Is Figure B a scaled copy of Figure A?

• Yes

• No

Multiple Choice

Which of the following is a scaled copy of figure A?

• B

• C

• D

​Corresponding Sides and Angles

Multiple Choice

Which side on the scaled copy corresponds to the side length HJ on the original image?

• AB

• BC

• AC

Multiple Choice

Identify the side length in Figure 1 that corresponds to the side length MQ in figure 2.

• BC

• AE

• CD

• DE

Multiple Choice

What is the scale factor from the smaller quadrilateral to the larger?

• scale factor = 4
• scale factor = 10
• scale factor = 3
• scale factor = 2

Multiple Choice

What is the scale factor from ΔABC to ΔDEF?

• 1/2
• 7/3
• 2
• 10/3

Multiple Choice

What is the scale factor from ABC to DEF?

• 2

• 3/2

• 2/3

• 1/2

​Using Scale Facor

​Using Scale Factor

Multiple Choice

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

• 21
• 1.25
• 20
• 4

Multiple Choice

Find missing side

• 5
• 7
• 9
• 11

Multiple Choice

Find side length X.

• 16
• 18
• 2.4
• 15

​Scale Drawings

• ​ Uses a scale to represent real life distances.

• ​For Example:

  • A blueprint uses the scale 1 inch = 4 feet. If the width of a room on the blueprint is 5 inches, how wide is it in real life?

Multiple Choice

On a map, the scale is 1 cm = 8 km.  Hatboro and Smithville are 24 cm apart on the map, what is the actual distance between the 2 cities?

• 87 km
• 216 km 
• 33 km
• 192 km

Multiple Choice

Desmond measured a city park and made a scale drawing. The scale he used was 1 centimeter : 9 meters. The actual width of the soccer field is 54 meters. How wide is the field in the drawing?

• 6 cm

• 486 cm

• 9 cm

• 54 cm

Multiple Choice

The distance from Point A to Point B on a scale drawing is 6 centimeters. If the scale is 1 centimeter : 10 meters. What is the actual distance from A to B?

• 6 m
• 10 m
• 18 m
• 60 m