Mathematical Formula and Basic Info Practice for Middle School

What formula is used to find the area of a rectangle?

• area = 2(length + width)

• area = length x width

• area = length + width

• area = length / width

How do you calculate the perimeter of a square? (s = length of side)

• perimeter = s1 + s2

• perimeter = s1 x s2

• perimeter = 4 x s1

• perimeter = 2 x s1

How do you calculate the perimeter of a rectangle? (s = length of side)

• perimeter = s1² + s2²

• perimeter = 2s1 x 2s2

• perimeter = 4 x s1

• perimeter = 2s1 + 2s2

How do you calculate the perimeter of a triangle? (s = length of side)

• perimeter = 3 x s1

• perimeter = s1 x H

• perimeter = s1 + s2 + s3

• perimeter = s1 x s2

What is the formula for the area of a circle?

• area = 2πr

• area = πr²

• area = 2πr²

• area = πr

How is the circumference of a circle calculated?

• circumference = 2rπ

• circumference = πr²

• circumference = 2πr

• circumference = πr²

What is the correct formula for finding the Mean of a set of values?

• Mean = Sum of all numbers - number of values

• Mean = Sum of all numbers / number of values

• Mean = Sum of all numbers x number of values

• Mean = Number of values / Sum of all numbers

How do you find the Median of a set of values?

• Add all of the numbers in the value set, then divide that total by the total number of values

• Put all of the numbers in order from least to greatest and find the middle

• Find the number that occurs most often

• Subtract the lowest value from the greatest value

• Find one or more value that is far different from the rest of the values

How do you find the Mode of a set of values?

• Add all of the numbers in the value set, then divide that total by the total number of values

• Put all of the numbers in order from least to greatest and find the middle

• Find the number that occurs most often

• Subtract the lowest value from the greatest value

• Find one or more value that is far different from the rest of the values

How do you find the Range of a set of values?

• Add all of the numbers in the value set, then divide that total by the total number of values

• Put all of the numbers in order from least to greatest and find the middle

• Find the number that occurs most often

• Subtract the lowest value from the greatest value

• Find one or more value that is far different from the rest of the values