Corresponding Parts and Scale Factor

Gwen scans a photo that is 4 in. wide by 6 in. tall into her computer. If she scales the height down to 3 in., how wide should the similar photo be?

• 3 in

• 2 in.

• 4 in

• 1 in

Are the following similar? Why or why not?

• Yes. The ratios of the corresponding sides are equal.

• No. The ratios of the corresponding sides are not equal.

What angle is corresponding to angle C?

• F

• D

• E

• A

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

• scale factor = 4

• scale factor = 1/2

• scale factor = 3/2

• scale factor = 1/4

Tags

Scale Factor

• 0.25
• 0.5
• 2
• 1/2

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

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

• 1/3

• 3

• 1/2

• 2

Is Figure B a scaled copy of Figure A?

• Yes

• No

Tags

Scale Copy

What is the corresponding angle to <DAB on the smaller polygon?

• <PMN

• <BAD

• <DCB

• <MNO

Is the smaller square a scaled copy of the larger square?

• Yes

• No