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Level 110

Square Roots & the Pythagorean Theorem


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Rational Number
Any number that can be expressed as a ratio of two integers. Example; 6 can be expressed as 6/1, and 0.5 as 1/2.
whole number
0, 1, 2, 3, 4, 5...
Integers
the set of positive whole numbers and their opposites(negative numbers) and 0
Irrational Numbers
any number that cannot be expressed as a fraction.
Hypotenuse
in a right triangle, the side opposite the right angle
Leg of a right triangle
the shorter sides of the triangle that form the triangle
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
Venn diagram
A diagram that uses circles to display elements of different sets. Overlapping circles show common elements.
Perfect Square
the number that forms when two same numbers are multiplied together
Square Root
when multiplying a number by itself to get a square number
coordinate plane
A plan formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis.
ordered pair
A pair of numbers that can be used to locate a point on a coordinate plane.
Converse
(noun) A statement that switches the hypothesis and conclusion
quadrants
Four regions into which a coordinate plane is divided by the x-axis and the y-axis
zero exponent
It's value is always 1.
negative exponent
Means to write the reciprocal of the base and use a positive exponent
Scientific notation
where a number is written into 2 parts first just the digits (with decimal point after first digit) followed by ×10 to a power
exponent
A mathematical notation indicating the number of times a quantity is multiplied by itself
Base
the number that is written with an exponent
power
a number produced by raising a base to an exponent