Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or a space that is proportionally reduced or enlarged to fit a specific size while maintaining the same shape.

Front

What is a scale factor?

Back

A scale factor is a number that describes how much a figure is enlarged or reduced in a scale drawing.

Front

If a rectangle measures 4 in by 7 in, what would be the dimensions of a scaled copy with a scale factor of 2?

Back

8 in by 14 in.

Front

What happens to the dimensions of a figure if the scale factor is less than 1?

Back

The figure will be reduced in size.

Front

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

Back

The scale factor is 6.

Front

How do you determine if two figures are scaled copies?

Back

Two figures are scaled copies if their corresponding sides are in proportion and their angles are equal.

Front

What is the relationship between the scale factor and the area of a figure?

Back

If the scale factor is k, the area of the scaled figure is k² times the area of the original figure.

Front

If a figure is enlarged by a scale factor of 3, what is the new area if the original area is 10 square units?

Back

The new area will be 90 square units.

Front

What does it mean if a scale factor is equal to 1?

Back

If the scale factor is equal to 1, the figure remains the same size; it is neither enlarged nor reduced.

Front

What is the scale factor from a smaller quadrilateral measuring 2 cm to a larger one measuring 8 cm?

Back

The scale factor is 4.