Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 138
Reasons 1. § 286. 2. § 54, 15. 3. § 54, 12. 4. § 279, a. 5. § 309. 6. Arg. 5. i. § 165. 314. Cor. I. (Converse of Proj). X). A straight line per])endicular to a radius at its outer extremity is tangent to the circle. Hint. Prove by the indirect method. In tlie figure for Prop. X,suppose that AB i^… … BOOK II 127 316. Cor. III. A line drawn froin the center of a circleperpendicular to a tangent passes through the point oftangency. 317. Def. A polygon is circum-Bcribed about a circle if each sideof the polygon is tangent to thecircle. In the same figure thecircle is said to be inscribed in…
Geometry, Plane · Geometry, Solid
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