Chapter 3.2 Flashcard Review

Front

What is a scaled copy in geometry?

Back

A scaled copy is a figure that is similar to another figure but is a different size. The corresponding sides of the figures are proportional.

Front

How do you determine the length of a missing side in similar triangles?

Back

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

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 'x per 1'.

Front

How do you find the unit rate from a sequence of figures?

Back

To find the unit rate, determine how much the quantity increases for each additional figure.

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if two quantities maintain a constant ratio or rate.

Front

How can you evaluate expressions mentally using structure?

Back

You can group numbers in a way that makes them easier to add or subtract, such as rounding or combining like terms.

Front

What is the sum of 78 and 25?

Back

103

Front

How do you identify the number of dots in a figure based on a pattern?

Back

Look for a consistent increase in the number of dots as the figure number increases, then apply that pattern to find the number of dots in any figure.

Front

What is the relationship between figure numbers and the number of dots if Figure 1 has 3 dots and Figure 2 has 6 dots?

Back

The relationship is proportional, as the number of dots doubles with each figure.

Front

If Figure 100 has 300 dots, how many dots does Figure 1 have if the pattern is consistent?

Back

Figure 1 has 3 dots, as the number of dots increases by 3 for each figure.