Dictionary for Basic and Intermediate Algebra
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Distributive Law
Removing Parenthesis
LCD or LCM
Factoring
Fraction
Evaluation Expression

» Topics in Basic & Intermediate Algebra

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Half-closed interval

Including only one endpoint but not the other; of the form [a,b) or (a,b] or equivalently .
Linear inequalities  System of inequalities

Heron's Formula

A formula for the area of a triangle , where a, b, c are side of the triangle and . For example, if the sides of a triangle are 7, 5, 4 then 
.

Height

The length from the vertex to the opposite base, or the length between two parallel sides or  parallel face for a polygon or solid. For example, in the following triangle, the height  is drawn.

Hexagon

A plane figure with six sides.

Hypotenuse

For a right triangle, the side opposites the right angle is called the hypotenuse. For any right triangle, the Pythagorean theorem asserts that:  (leg 1)2 + (leg 2)2 = (hypotenuse)2

 

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