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Mathematics LibreTexts

2: Appendices

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  • 2.1: The Multiplication Table
  • 2.2: Absolute Value
    Every real number can be represented by a point on the real number line. The distance from a number (point) on the real line to the origin (zero) is what we called the magnitude (weight) of that number in Chapter 1. Mathematically, this is called the absolute value of the number.
  • 2.3: Formulas from Geometry
    We review some well-known formulas from planar geometry.
  • 2.4: The Pythagorean Theorem
    The Pythagorean Theorem relates the lengths of the legs of a right triangle and the hypotenuse.


This page titled 2: Appendices is shared under a CC BY-NC-ND 4.0 license and was authored, remixed, and/or curated by Samar ElHitti, Marianna Bonanome, Holly Carley, Thomas Tradler, & Lin Zhou (New York City College of Technology at CUNY Academic Works) via source content that was edited to the style and standards of the LibreTexts platform.

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