Scaled Copies

Scale factor is _________

• the number you multiply the original shape by in order to get the scale copy
• the number you divide the original shape by in order to get the scale copy
• the number you add the original shape by in order to get the scale copy
• the number you subtract the original shape by in order to get the scale copy

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

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

• A

• B

• C

• D

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

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

• Segment AB

• Segment BC

• Segment AC

• Segment BA

Answer explanation

BA is the same line but corresponding points should be listed in the same order to create the segment.

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

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

• Segment BC

• Segment AE

• Segment CD

• Segment DE

Tags

CCSS.7.G.A.1

Is Figure B a scaled copy of Figure A?

• Yes

• No

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

ΔDEF is a scaled copy of ΔABC, what is the scale factor?

• 1/2

• 7/10

• 2

• 10/6

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

The two rectangles are scaled copies, what is the scale factor from the small shape to the larger shape?

• 4

• .25

• 7/28

• 5/x

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

True or False: Two figures are scaled copies of one another if the sides are proportional (you multiply all sides of the first figure by the same scale factor to get the sides of the second figure) AND the corresponding angles are equal.

• True

• False

Answer explanation

All sides in the first shape also have to be multiplied by the same scale factor.

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

True or False: Two figures are scaled copies of one another if you can take ever side in the first shape and multiply all sides by the same number to create the second shape.

• True

• False

Answer explanation

All the angles also have to be equal.

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

True or False: Two figures are scaled copies of one another if all of the corresponding angles are equal.

• True

• False

Answer explanation

All sides in the first shape also have to be multiplied by the same scale factor.

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2