Scaled Copies

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or area that maintains the proportions of the original but is reduced or enlarged by a specific scale.

Front

If the scale is 1 cm : 9 m, how do you convert actual measurements to the drawing?

Back

To convert actual measurements to the drawing, divide the actual measurement by the scale factor (9) to get the measurement in centimeters.

Front

How wide is a soccer field that is 54 meters wide in a scale drawing with a scale of 1 cm : 9 m?

Back

6 cm.

Front

What is the definition of a scale factor?

Back

The scale factor is the ratio of the length in the scale drawing to the corresponding length in the actual object.

Front

If a small fry is 2 cm and a large fry is 6 cm, what is the scale factor?

Back

3.

Front

What does it mean for shapes to be scaled copies?

Back

Scaled copies are shapes that have the same shape but different sizes, maintaining proportional dimensions.

Front

How do you find the corresponding side length in scaled figures?

Back

To find the corresponding side length, use the scale factor to relate the lengths of the two figures.

Front

What is the relationship between the original shape and its scaled copy?

Back

The original shape and its scaled copy are similar, meaning they have the same angles and proportional side lengths.

Front

What is the formula to calculate the area of a scaled copy?

Back

The area of a scaled copy is equal to the area of the original shape multiplied by the square of the scale factor.

Front

If a rectangle has a length of 4 cm and a width of 2 cm, what are the dimensions of its scaled copy with a scale factor of 2?

Back

The dimensions of the scaled copy would be 8 cm (length) and 4 cm (width).