Scale Copy Practice

Front

What is a scaled copy?

Back

A scaled copy is a figure that is similar to another figure but is a different size, created by multiplying the dimensions of the original figure by a scale factor.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. In geometry, it is the ratio of the dimensions of a scaled copy to the dimensions of the original figure.

Front

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

Back

It means that the dimensions of the scaled copy are twice as large as the dimensions of the original figure.

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

What is the scale factor from a small figure measuring 3 cm to a large figure measuring 9 cm?

Back

The scale factor is 3, because 9 cm divided by 3 cm equals 3.

Front

If a triangle has sides of lengths 2 cm, 3 cm, and 4 cm, what are the lengths of the sides of a scaled copy with a scale factor of 3?

Back

The sides of the scaled copy would be 6 cm, 9 cm, and 12 cm.

Front

What does it mean if a figure is not a scaled copy?

Back

It means that the figure does not maintain the same shape or proportionality in dimensions compared to the original figure.

Front

If Figure A has a length of 5 cm and Figure B is a scaled copy with a scale factor of 4, what is the length of Figure B?

Back

The length of Figure B is 20 cm.

Front

What is the relationship between corresponding angles in scaled copies?

Back

Corresponding angles in scaled copies are always equal.

Front

If the scale factor is 1/2, how does the size of the scaled copy compare to the original?

Back

The scaled copy is half the size of the original figure.