## An Elementary Geometry |

### From inside the book

Results 1-5 of 31

Page 9

William Frothingham Bradbury. 20. An

William Frothingham Bradbury. 20. An

**Equilateral**Polygon is one whose sides are**equal**each to each . 21. An ...**TRIANGLES**. B 26. A Scalene**Triangle**is one which has no two of its sides**equal**; as A B C. A C E 27. An Isosceles**Triangle**is ... Page 10

...

...

**triangles**are called oblique - angled**triangles**. 32. The side upon which any polygon is supposed to stand is ...**equal**to two right angles . Let A B C be a**triangle**; the sum of its three angles , A , B , C , is**equal**to two right ... Page 11

...

...

**equal**to two angles of the other , the remaining angles are**equal**. 36. Cor . 3. In a**triangle**there can be but one ...**triangles**have two sides and the included angle of the one respectively**equal**to two sides and the included angle of ... Page 12

... equal to two angles and the included side of the other , the two

... equal to two angles and the included side of the other , the two

**triangles are equal**in all respects . In the triangles ABC and DEF , let the angle B E A equal the angle D , the angle C equal the angle F , and the side A C equal A4 DF ... Page 13

... triangle bisects the angle opposite , and also the triangle . 44. Cor . 2. An equilateral triangle is equiangular . THEOREM XI . 45. If two angles of a

... triangle bisects the angle opposite , and also the triangle . 44. Cor . 2. An equilateral triangle is equiangular . THEOREM XI . 45. If two angles of a

**triangle are equal**, the sides opposite are also equal . In the triangle ABC let the ...### Other editions - View all

### Common terms and phrases

A B C A B D ABCD adjacent adjacent angles altitude angle ABC apothem base and altitude centre chord circ circumference cone construct the triangle convex surface Corollary cylinder diagonals diameter distance divided dodecagon equal altitudes equally distant equilateral feet frustum given angle given circle given line given point given side half the arc hexagon homologous sides hypothenuse included angle infinite number inscribed internal angles intersection isosceles triangle Let ABCDEF line joining lines A B measured by half mutually equiangular number of sides opposite sides parallelogram parallelopiped perimeter perpendicular plane parallel quadrilateral radii radius ratio rectangle regular polygon respectively equal rhombus right angles right prism right pyramid right triangle Scholium secant segment similar triangles slant height sphere tangent THEOREM VII trapezoid triangle ABC triangles are equal vertex