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Square Root

when multiplying a number by itself to get a square number

Perfect Square

the number that forms when two same numbers are multiplied together

Radicand

The numbers under the radical sign 7.1

cube root

the number that is multiplied by itself three times

Perfect Cube Root

is a number that can be written as the cube of an integer.

The Pythagorean Theorem

For any right triangle, the lengths of the two sides and the hypotenuse are related by an important mathematical statement called the

Legs

in a right triangle, the sides that include the right angle; in an isosceles triangle, the pair of congruent sides

Hypotenuse

in a right triangle, the side opposite the right angle

Rational numbers

Numbers that include integers, wholes, and natural numbers.

Irrational Numbers

any number that cannot be expressed as a fraction.

real numbers

Any Number

Distance Formula

d = √[( x₂ - x₁)² + (y₂ - y₁)²]

Right Triangle

A triangle with one right angle.

Pythagorean Theorem

in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs

Converse

(noun) A statement that switches the hypothesis and conclusion

Counting Numbers (or Natural Numbers)

(noun) the set of real numbers that begins at 1 and continues forever (1, 2, 3, 4,...)

Whole Numbers

Zero and the counting numbers 1, 2, 3, 4, 5, 6, and so on. If a number has a negative sign, a decimal point, or a part that's a fraction, it is NOT a whole number.

Integers

the set of positive whole numbers and their opposites(negative numbers) and 0

Radical

(noun) a sign placed in front of an expression to denote that a root is to be extracted.