6.8 Review 8.2 A 8.2B

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the relationship between the area of a square and the length of its diagonal?

Back

The length of the diagonal (d) of a square can be found using the formula d = s√2, where s is the length of a side.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b ≠ 0.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; its decimal representation is non-repeating and non-terminating.

Front

What is the square root of 16?

Back

The square root of 16 is 4.

Front

What is the approximate value of √5?

Back

The approximate value of √5 is about 2.24.

Front

What is the difference between integers and rational numbers?

Back

Integers are whole numbers that can be positive, negative, or zero, while rational numbers include all integers as well as fractions.

Front

What does a Venn diagram represent?

Back

A Venn diagram visually represents the relationships between different sets, showing common and unique elements.

Front

What is the value of √20 in terms of rationality?

Back

√20 is an irrational number.

Front

How do you determine the placement of a number in a Venn diagram?

Back

You determine placement based on the properties of the number, such as whether it is rational, irrational, or an integer.