G-6.3 FLASHCARD Similar Figures

Front

What are similar figures?

Back

Similar figures are shapes that have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. In the context of similar figures, it is the ratio of the lengths of corresponding sides.

Front

If the scale factor from figure A to figure B is 4, how does this affect the perimeter?

Back

The perimeter of figure B is 4 times larger than the perimeter of figure A.

Front

How do you find a missing side in similar figures?

Back

To find a missing side, set up a proportion using the lengths of corresponding sides from the similar figures.

Front

If a tree is 12 feet tall and casts a shadow of 9 feet, what is the height of a building that casts a shadow of 24 feet?

Back

The height of the building is 32 feet.

Front

What is the relationship between the areas of two similar figures?

Back

The ratio of their areas is the square of the scale factor.

Front

If two figures are similar, what can be said about their angles?

Back

All corresponding angles of similar figures are equal.

Front

How do you set up a proportion for similar figures?

Back

To set up a proportion, use the lengths of corresponding sides from the figures and create a fraction for each pair.

Front

What does it mean if two figures are not similar?

Back

If two figures are not similar, it means they do not have the same shape, and their corresponding angles are not equal.

Front

If CB / DM = AC / ?, what is the missing term if the answer is AD?

Back

The missing term is AD.