SC Geo - Solving Proportions & Scale Copies

Front

What is a scaled copy?

Back

A scaled copy is a figure that is proportional in size to another figure, meaning all corresponding lengths are multiplied by the same scale factor.

Front

What is a scale factor?

Back

The scale factor is a number that scales, or multiplies, some quantity. In geometry, it is the ratio of the lengths of two corresponding sides of two similar figures.

Front

How do you determine if two figures are scaled copies?

Back

Two figures are scaled copies if their corresponding angles are equal and the lengths of their corresponding sides are proportional.

Front

If the scale factor is 2, what does that mean?

Back

It means that every length in the scaled copy is twice as long as the corresponding length in the original figure.

Front

What is the scale factor if the original length is 5 and the scaled length is 20?

Back

Front

What is the relationship between scale factor and area?

Back

If the scale factor is k, the area of the scaled copy is k² times the area of the original figure.

Front

If a figure is enlarged by a scale factor of 3, what happens to its dimensions?

Back

All dimensions (length, width, height) of the figure are multiplied by 3.

Front

What is the scale factor if a figure is reduced from a length of 10 to a length of 2?

Back

Front

How can you find the length of a side in a scaled copy?

Back

Multiply the corresponding side length of the original figure by the scale factor.

Front

If Figure A has a length of 8 and Figure B is a scaled copy with a scale factor of 0.5, what is the length of Figure B?

Back