The book Lessons in Geometry : for the Use of Beginners was written by author G a George Anthony Hill Here you can read free online of Lessons in Geometry : for the Use of Beginners book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Lessons in Geometry : for the Use of Beginners a good or bad book?
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/. ABC= 30. The distance from A to the base BC is 6 1 " 11 . Find the dis- tances between the towns. X FIG. 79. 6. In order to find the distance XY (Fig. 79), without any means for measuring angles, I chose four points, A, B, (7, J5, and measured their distances with the following results : AB=140 m, AD=18Q m, u4(7=115 m, . RD=65 m, CD=85 m . Draw a plan, and find XY. CHAPTER V. POLYGONS. Lesson 41. 1. Define a polygon: its sides; perimeter; vertices. A polygon is a plane figure bounded by stra...ight lines. The bounding lines are called its sides ; their sum, its perime- ter ; their intersections, its vertices. 2. Name the most important polygons. Polygons are named according to the number of sides. A triangle has three sides ; a quadrilateral, four sides ; a pentagon, five sides ; a hexagon, six sides ; an octagon, eight sides ; a decagon, ten sides ; a dodecagon, twelve sides. 3. Define a diagonal, and explain how a polygon may be divided into triangles by drawing diagonals. A diagonal is a straight line joining two vertices not on the same side.
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