Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 245
ight triangle as hoinologous sides, thepolygon described on the hypotenuse is equivalent tothe sum of the polygons described on the other two sides. Given rt. A ABC, right-angled at C, and let P, Q, and i? be ^polygons described on a, 6, and c, respectively, as homol. sides.To prove i? =0= P + Q.… … Pythagoras 510. Historical Note. Prop. XII is usually known as the Pythago-rean Proposition, because it was discovered by Pythagoras. The proofgiven here is that of Euclid (about 300 B.C.). Pythagoras (569-500 b.c),one of the most famous mathe-maticians of antiquity, wasbom at Samos. He spent…
Geometry, Plane · Geometry, Solid
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