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" The lines are called the sides. The perimeter of a polygon is the sum of all its sides. The... "
Mensuration, Mechanical Powers, and Machinery: The Principles of Mensuration ... - Page 23
by Daniel Adams - 1850 - 128 pages
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First Lessons in Geometry: With Practical Applications in Mensuration, and ...

Charles Davies - Geometrical drawing - 1840 - 264 pages
...figure, or polygon. The lines themselves, taken together, are called the perimeter of the polygon. Hence, the perimeter of a polygon is the sum of all its sides. Q.UEST. — 8. From the same point, how many perpendiculars can be drawn to a line 1 If oblique lines...
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Elements of Drawing and Mensuration Applied to the Mechanic Arts: A Book for ...

Charles Davies - Geometrical drawing - 1846 - 254 pages
...decagon. A polygon of twelve sides, is called a dodecagon. 5. What is the perimeter of a polygon ? The perimeter of a polygon is the sum of all its sides. 6. What is the least number of straight lines which can enclose a space? Three straight lines, are...
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Mensuration, Mechanical Powers and Machinery: The Principles of Mensuration ...

Daniel Adams - Arithmetic - 1849 - 142 pages
...Mixtilinear Plane Figures are planes bounded by lines and curves. EECTILINEAK PLANE FIGURES. IT 3O. 1. .Rectilinear plane figures are called Polygons....and their sides about the equal angles proportional. 6. A Triangle is a polygon of three sides. Thus, ABC is a triangle. IT 20. Topic. Plane figures. Rectilinear...
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Introduction to The National Arithmetic: On the Inductive System Combining ...

Benjamin Greenleaf - Arithmetic - 1849 - 336 pages
...A REGULAR POLYGON is a plane rectilineal figure, which has all its sides and all its angles equal. The perimeter of a polygon is the sum of all its sides. ART. 334. To find the area of a regular polygon. QUESTIONS. — Art. 320. What is a trapezium ? What...
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Ticknor's Mensuration, Or, Square and Triangle: Being a Practical and ...

Almon Ticknor - Measurement - 1849 - 156 pages
...called a dodecagon. The lines of a polygon, taken together, are called the perimeter of the polygon. The perimeter of a polygon is the sum of all its sides. ' . An equilateral polygon is one which has all its sides equal. An equiangular polygon is one which...
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Elementary Geometry: With Applications in Mensuration

Charles Davies - Geometry - 1850 - 218 pages
...or polygon. The lines themselves, taken together, are called the peri?neter of the polygon. Hence, the perimeter of a polygon is the sum of all its sides. 37. A polygon of three sides is called a triangle. 38. A polygon of four sides is called a quadrilateral....
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Elementary Geometry: With Applications in Mensuration

Charles Davies - Geometry - 1850 - 238 pages
...figure, or polygon. The lines themselves, taken together, are called the perimeter of the polygon. Hence, the perimeter of a polygon is the sum of all its sides. 37. A polygon of three sides is called a triangle. 38. A polygon of four sides is called a quadrilateral....
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Introduction to the National Arithmetic ...

Benjamin Greenleaf - 1851 - 332 pages
...A REGULAR POLYGON is a plane rectilineal figure, which has all its sides and all its angles equal. The perimeter of a polygon is the sum of all its sides. ART. 334. To find the area of a regular polygon. QUESTIONS. — Art. 320. What is a trapezium? What...
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Indroduction to the National Arithmetic ...

Benjamin Greenleaf - 1854 - 342 pages
...REGULAR POLYGON is a plane rectilineal figure, which has all its sides and all its angles equal. , The perimeter of a polygon is the sum of all its sides. ART. 334. To find the area of a regular polygon. QUESTIONS. — Art. 320. What is a trapezium 1 What...
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Elements of Geometry and Trigonometry: With Applications in Mensuration

Charles Davies - Geometry - 1855 - 340 pages
...figure, or polygonThe lines themselves, taken together, are called the perimeter of the polygon- Hence, the perimeter of a polygon is the sum of all its sides- 37 A polygon of three sides is called a triangle38 A polygon of four sides is called a quadrilateral39...
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