Proportions

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then isolate the variable.

Front

What is the ratio of 16 to 14?

Back

The ratio of 16 to 14 is 8 to 7.

Front

Are the ratios 16:14 and 64:60 equivalent?

Back

No, they are not equivalent.

Front

Back

x = 8.

Front

How do you set up a proportion to find the height of an object using shadows?

Back

Front

If a 6-foot person casts a 2-foot shadow, what is the height of a statue that casts a 10-foot shadow?

Back

The statue is 30 feet tall.

Front

What is the formula for finding equivalent ratios?

Back

Two ratios a:b and c:d are equivalent if a/b = c/d.

Front

What is the relationship between similar triangles and proportions?

Back

Similar triangles have corresponding sides that are in proportion.

Front

How can proportions be used in real-life situations?

Back

Proportions can be used in situations like scaling models, cooking, and determining heights using shadows.