Identifying Scaled Copies in Geometry

The video tutorial explores how to determine if one figure is a scaled version of another by examining their side lengths and calculating scaling factors. It provides multiple examples, guiding viewers through the process of comparing corresponding sides and verifying consistent scaling factors. The tutorial emphasizes the importance of uniform scaling across all sides to confirm that one figure is a scaled copy of another.

What is the main objective of the video?

• To learn about different geometric shapes.

• To understand how to find the area of figures.

• To determine if pairs of figures are scaled copies of each other.

• To learn about the Pythagorean theorem.

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the length of the side in Figure A that corresponds to a side of length 5 in Figure B?

• 5

• 2

• 3

• 4

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the scaling factor from the side of length 3 in Figure A to the corresponding side in Figure B?

• 2

• 1

• 3/5

• 5/3

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CCSS.7.G.A.1

Why are Figures A and B not scaled versions of each other in the first example?

• Because the figures have different perimeters.

• Because the figures have different areas.

• Because the figures have different shapes.

• Because the scaling factor is not consistent for all sides.

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CCSS.8.G.A.3

What is the length of the side in Figure A that corresponds to a side of length 6 in Figure B in the second example?

• 2

• 3

• 5

• 4

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the scaling factor from the side of length 2 in Figure A to the corresponding side in Figure B in the second example?

• 2

• 3

• 4

• 5

Tags

CCSS.7.G.A.1

Why are Figures A and B not scaled versions of each other in the second example?

• Because the figures have different perimeters.

• Because the figures have different areas.

• Because the figures have different shapes.

• Because the scaling factor is not consistent for all sides.

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CCSS.8.G.A.3

What is the scaling factor from the side of length 4 in Figure A to the corresponding side in Figure B in the third example?

• 2

• 3

• 4

• 5

Tags

CCSS.7.G.A.1

What is the length of the side in Figure A that corresponds to a side of length 12 in Figure B in the third example?

• 4

• 5

• 3

• 2

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Why are Figures A and B scaled versions of each other in the third example?

• Because the figures have the same area.

• Because the figures have the same perimeter.

• Because the figures have the same shape.

• Because the scaling factor is consistent for all sides.

Tags

CCSS.8.G.A.3