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## Phytagoras Theorems

by ancient Mesopotamian math, but there is no conclusive evidence in favor or opposition of this possibility. Let ABC represent a right triangle, with the right angle located at C, as shown on the figure. The above proof of the converse makes use of the Pythagorean theorem itself. If the length of both a and b are known, then c can be calculated as ca2b2.displaystyle csqrt a2b2. The inner product is a generalization of the dot product of vectors. Draw the altitude from point C, and call H its intersection with the side.

84 However, when authors such as Plutarch and Cicero attributed the theorem to Pythagoras, they did so in a way which suggests that the attribution was widely known and undoubted. See for example Pythagorean theorem by shear mapping, Saint Louis University website Java applet Jan Gullberg (1997). The role of this proof in history is the subject of much speculation. The area of a rectangle is equal to the product of two adjacent sides. Published in a weekly mathematics argentina Country Report column: James A Garfield (1876). Swetz, Frank; Kao,.

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