PreAlg Ch 9 Voc Cards

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square root

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Terms in this set (14)

a number that when multiplied by itself equals a given number

A rational number whose square root is a whole number

radical expression

An expression that contains a radical sign.

simplest form of a radical expression

a radical expression that has no perfect square factors other than 1 in the radicand, no fractions in the radicand, and no radicals appearing in the denominator of a fraction

the side of a right triangle opposite the right angle

one of the two sides of the right triangle that form the 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

irrational numbers

Numbers that cannot be expressed as a ratio of two integers. Their decimal expansions are nonending and nonrepeating.

All rational and irrational numbers

A point that divides a segment into two congruent segments