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" Lines drawn upon paper or upon the blackboard are not geometrical lines, since they have breadth and thickness. They represent geometrical lines. 25. A straight line is the shortest distance from one point to another point. 26. A curved line changes its... "
The Werner Arithmetic: Oral and Written - Σελίδα 19
των Frank H. Hall - 1898
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...breadth. The extremities of a line are called points : a point, therefore, occupies no space. III. A straight line is the shortest distance from one point to another. IV. Every line, which is not straight, or composed of straight lines, is a curve line. Thus, AB is...

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...extremities are called points. FIG. 3. The place where two lines meet is also called a point. FIG. 2. A straight line is the shortest distance from one point to another. FIG. 4. A broken line is composed of straight lines. FIG. 5. A curved line is neither straight nor...

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...dimensions, length, breadth, height, or thickness. 2 A line is lengh without breadth, or thickness. 3. A straight line is the shortest distance from one point to another. 4. Every line which is not straight, or composed of straight lines, is a curved line. 3B Thus, AB is...

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