scale/proportions

Front

What is a scale in the context of maps and models?

Back

A scale is a ratio that compares a distance on a map or model to the actual distance it represents in real life.

Front

If 1 inch on a map represents 4 miles in reality, what is the scale of the map?

Back

1 inch = 4 miles.

Front

How do you calculate the actual distance using a scale?

Back

Multiply the distance on the map by the scale factor.

Front

What is a proportion?

Back

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

Front

If a model is 2 ft wide and the scale is 1 foot = 100 yards, how wide is the actual object?

Back

200 yards.

Front

What is the formula to find the actual size using a scale drawing?

Back

Actual size = Size on drawing × Scale factor.

Front

If a rectangle's length is 4 inches and the scale is 1 inch = 5 yards, what is the actual length?

Back

20 yards.

Front

What does it mean for two figures to be scale drawings of each other?

Back

It means they have the same shape but different sizes, maintaining the same proportions.

Front

How do you find the missing side length in similar figures?

Back

Set up a proportion using the known side lengths and solve for the unknown.

Front

If a model of a car is 1 inch long and the scale is 1 inch = 10 feet, how long is the actual car?

Back

10 feet.