# Plane Geometry Suggestive Method

Atkinson, Mentzer & Grover, 1905

### Contents

 PLANE GEOMETRY 1 CHAPTER II 80 CHAPTER III 134 CHAPTER IV 177
 CHAPTER V 194 SUPPLEMENTARY PROPOSITIONS 355 iii Copyright

### Popular passages

Page 152 - If a line divides two sides of a triangle proportionally, it is parallel to the third side.
Page 80 - A circle is a portion of a plane bounded by a curved line, all points of which are equally distant from a point within called the centre.
Page 85 - The locus of a point at a given distance from a given point is the circumference described from the point with the
Page 163 - If two polygons are composed of the same number of triangles, similar each to each and similarly placed, the polygons are similar.
Page 135 - In any proportion, the product of the means equals the product of the extremes.
Page 54 - ... that the sum of the interior angles of a triangle is equal to two right angles.
Page 182 - The area of a rectangle is equal to the product of its base and altitude.
Page 76 - 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.
Page 186 - If two triangles have an angle of one equal to an angle of the other, the ratio of their areas equals the ratio of the products of the sides including the equal angles. AA BC ABXACA To prove = . AA B' CA B' x AC' Suggestion. Connect B and C'.
Page 34 - If the sum of two adjacent angles is equal to two right angles, the exterior arms of the angles are in the same straight line.