Scale Factor

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. It is used to determine the proportional relationship between two similar figures.

Front

How do you calculate the height of a scale drawing?

Back

To calculate the height of a scale drawing, divide the actual height by the scale factor.

Front

If a scale factor is less than 1, what happens to the size of the figure?

Back

If a scale factor is less than 1, the figure gets smaller.

Front

What is the scale factor if a rectangle's dimensions are doubled?

Back

The scale factor is 2.

Front

How do you express a scale without units?

Back

A scale without units can be expressed as a ratio, such as '15 to 30'.

Front

What is the relationship between scale drawings and similar figures?

Back

Scale drawings are representations of similar figures that maintain the same proportions.

Front

What is the scale of a drawing that represents 1 inch as 10 feet?

Back

The scale is 1 inch : 10 feet.

Front

How do you convert feet to inches in a scale drawing?

Back

To convert feet to inches, multiply the number of feet by 12.

Front

What is the measurement of x if two rectangles are scale drawings and the scale factor is 2?

Back

If the scale factor is 2, then x is twice the corresponding measurement in the original rectangle.

Front

What does a scale factor of 3 indicate about the size of a figure?

Back

A scale factor of 3 indicates that the figure is three times larger than the original.