Finding Scale Factor

Front

If the scale factor is between 0 & 1, the copy is ________ the original.

Back

smaller than

Front

If the scale factor is equal to 1, the copy is ________ the original.

Back

the same size as

Front

If the scale factor is greater than 1, the copy is ________ the original.

Back

bigger than

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, a quantity.

Front

How do you find the scale factor between two similar shapes?

Back

Divide the length of a side of the new shape by the length of the corresponding side of the original shape.

Front

What happens to the area of a shape when the scale factor is 2?

Back

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

Front

What happens to the perimeter of a shape when the scale factor is 3?

Back

The perimeter increases by a factor of 3.

Front

If a triangle has sides of 3 cm, 4 cm, and 5 cm, what are the sides of a triangle with a scale factor of 2?

Back

6 cm, 8 cm, and 10 cm.

Front

If the scale factor is 0.5, what happens to the size of the object?

Back

The object becomes half the size of the original.

Front

What is the relationship between scale factor and similarity in geometry?

Back

Similar shapes have the same shape but different sizes, related by a scale factor.