FLASHCARD: Ratios, Units Rates, Similar Figures, and Scale Drawings

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per'.

Front

How do you find a unit rate?

Back

To find a unit rate, divide the first quantity by the second quantity to get the value for one unit.

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 sides are proportional.

Front

How do you find missing sides in similar figures?

Back

Use the property of proportionality: set up a proportion using the lengths of corresponding sides.

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object that is proportional to its actual size, using a specific ratio.

Front

How do you calculate actual dimensions from a scale drawing?

Back

Multiply the dimensions in the drawing by the scale factor to find the actual dimensions.

Front

What does '1 inch = 15 feet' mean in a scale drawing?

Back

It means that every 1 inch on the drawing represents 15 feet in real life.

Front

How do you convert inches on a map to real-life miles?

Back

Multiply the number of inches by the scale factor to convert to real-life distance.