Scaled Copies

Front

What is a scaled copy?

Back

A scaled copy is a figure that is similar to another figure but is either larger or smaller by a certain scale factor.

Front

What does scale factor mean?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced compared to another figure.

Front

If the scale factor is greater than 1, what type of transformation occurs?

Back

Enlargement.

Front

If the scale factor is less than 1, what type of transformation occurs?

Back

Reduction.

Front

What is the scale factor from a triangle with sides 3 cm, 4 cm, and 5 cm to a triangle with sides 6 cm, 8 cm, and 10 cm?

Back

2.

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 happens to the area of a figure when it is enlarged by a scale factor of 2?

Back

The area increases by a factor of 4 (2 squared).

Front

What happens to the perimeter of a figure when it is reduced by a scale factor of 1/2?

Back

The perimeter is also reduced by a factor of 1/2.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what are the dimensions of its scaled copy with a scale factor of 3?

Back

Length: 30 cm, Width: 15 cm.

Front

What is the relationship between corresponding sides of similar figures?

Back

The ratios of the lengths of corresponding sides are equal to the scale factor.