To cut a given Area from a Plank.. To find the solid Content of a square Piece of Timber................. To find the Number of cubic Feet in any Number of Bushels GEOMETRY. BOOK I. . SECTION I. OF LINES AND ANGLES. 1. What is a line? A Line is length, without breadth or thickness. 2. What are the extremities of a line called? The Extremities of a Line are called points; and any place between the extremities, is also called a point. 3. What is a straight line? A Straight Line, is the shortest distance from one point to another. Thus, AB is a straight line, and the shortest distance from A to B. 4. What is a curve line? A Curve Line, is one which changes its direction at every point. Thus, ABC is a curve line. 5. What does the word line mean? The word Line, when used by itself, means a straight line; and the word Curve, means a curve line. |