Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or area that is proportionally reduced or enlarged to fit a specific size, maintaining the same shape and proportions.

Front

What does the scale factor indicate?

Back

The scale factor indicates how much larger or smaller a scale drawing is compared to the actual object. A scale factor greater than 1 indicates enlargement, while a scale factor less than 1 indicates reduction.

Front

If the scale factor is ½, what type of transformation does it represent?

Back

Reduction.

Front

What is the scale factor if a shape is enlarged from a size of 2 units to 8 units?

Back

Scale factor = 4.

Front

How do you find the corresponding side lengths in scale drawings?

Back

To find corresponding side lengths, multiply the original side length by the scale factor.

Front

What is the scale factor if a rectangle measuring 4 in by 7 in is scaled to 24 in by 42 in?

Back

Scale factor = 6.

Front

What is an example of a scale factor of 3?

Back

If a rectangle has a length of 2 units, its scaled length would be 6 units (2 x 3 = 6).

Front

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

Back

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

Front

If a shape is reduced by a scale factor of ¼, what is the new length of a side that was originally 8 units?

Back

The new length would be 2 units (8 x ¼ = 2).

Front

What is the relationship between scale factors and proportions?

Back

Scale factors maintain the proportions of the original shape, meaning the ratio of corresponding sides remains constant.