# Plane Geometry Developed by the Syllabus Method

American Book Company, 1909 - 192 уелЯдет
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### Ресйечьменб

 RECTILINEAR FIGURES 15 Points LINES AND SURFACES 22 EQUALITY 28 POLYGONS 39 TRIANGLE THEOREMS 48 PARALLELS AND PARALLELOGRAMS 65 CIRCLES 87 EQUIVALENCE AND AREA 119
 CONSTRUCTIONS 133 PAGE 139 SIMILAR FIGURES 145 CONSTRUCTIONS 152 REGULAR POLYGONS AND CIRCLES 159 THE FORMULAS OF GEOMETRY 168 APPENDIX 183 РнехмбфйкЬ дйкбйюмбфб

### ДзмпцйлЮ брпурЬумбфб

УелЯдб 46 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
УелЯдб 68 - Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.
УелЯдб 71 - The line which joins the mid-points of two sides of a triangle is parallel to the third side and equal to one half of it.
УелЯдб 170 - A line from the vertex of an isosceles triangle to any point in the base is smaller than the arms.
УелЯдб 47 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.
УелЯдб 100 - In the same circle, or in equal circles, if two arcs are equal, their central angles are equal; and conversely.
УелЯдб 39 - In a right triangle, the side opposite the right angle is called the hypotenuse and is the longest side.
УелЯдб 159 - If the number of sides of a regular polygon inscribed in a circle be increased indefinitely, the apothem of the polygon will approach the radius of the circle as its limit.
УелЯдб 92 - LET it be granted that a straight line may be drawn from any one point to any other point.
УелЯдб 179 - The triangle formed by joining the middle point of one of the non-parallel sides of a trapezoid to the extremities of the opposite side is equivalent to one-half the trapezoid.