 | Edwin Pliny Seaver, George Augustus Walton - 1895 - 412 sider
...of a hexagon ? octagon ? decagon ? Thus learn that, in general, The sum of the angles of any polygon is equal to twice as many right angles as the polygon has sides less two sides. j. If all the angles of a pentagon (hexagon, octagon, decagon, dodecagon) are equal,... | |
 | Mansfield Merriman, John Pascal Brooks - 1895 - 278 sider
...parallel to the same straight line are parallel to each other. The sum of the interior angles of a polygon is equal to twice as many right angles as the polygon has sides minus four right angles. The sum of the exterior angles formed by producing the sides of a polygon... | |
 | Edwin Pliny Seaver, George Augustus Walton - 1895 - 438 sider
...hexagon ? octagon ? decagon ? Thus learn that, in general, Tfie sum of the angles of any polygon ts equal to twice as many right angles as the polygon has sides less two sides. j. If all the angles of a pentagon (hexagon, octagon, decagon, dodecagon) are equal,... | |
 | Mansfield Merriman, John Pascal Brooks - 1895 - 286 sider
...to the same straight line are parallel to each other. The sum of the interior angles of a polygon ia equal to twice as many right angles as the polygon has sides minus four right angles. The sum of the exterior angles formed by producing the sides of a polygon... | |
 | Joe Garner Estill - 1896 - 186 sider
...a triangle is greater than the difference of the other two. 4. The sum of the angles of any polygon is equal to twice as many right angles as the polygon has sides, less four right angles. 5. The areas of similar triangles are to each other as the squares of their... | |
 | Joe Garner Estill - 1896 - 168 sider
...a triangle is greater than the difference of the other two. 4. The sum of the angles of any polygon is equal to twice as many right angles as the polygon has sides, less four right angles. 5. The areas of similar triangles are to each other as the squares of their... | |
 | Webster Wells - 1898 - 264 sider
...of the A of any A is equal to two rt. AJ (§ 84) 127. Cor. I. TJie sum of the angles of any polygon is equal to twice as many right angles as the polygon has sides, less four right angles. "For if R represents a rt. Z., and n the number of sides of a polygon, the... | |
 | William James Milne - 1899 - 258 sider
...of sides. To prove ABCDE and FGHJK similar. Proof. By § 166, the sum of the angles of each polygon is equal to twice as many right angles as the polygon has sides less two. Since, § 374, each polygon is equiangular, and since each contains the same number of angles... | |
 | Webster Wells - 1899 - 450 sider
...the sum of the A of the polygon is n — 2 times 127. Cor. I. The sum of the angles of any polygon is equal to twice as many right angles as the polygon has sides, less four right angles. For if R represents a rt. Z, and n the number of sides of a polygon, the sum... | |
 | William James Milne - 1899 - 398 sider
...of sides. To prove ABCDE and FGHJK similar. Proof. By § 166, the sum of the angles of each polygon is equal to twice as many right angles as the polygon has sides less two. Since, § 374, each polygon is equiangular, and since each contains the same number of angles... | |
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The sum of all the angles of a polygon is equal to twice as many right angles as the polygon has sides, less two. 
