### Фй лЭне пй чсЮуфет -Уэнфбоз ксйфйкЮт

Ден енфпрЯубме ксйфйкЭт уфйт ухнЮиейт фпрпиеуЯет.

### Ресйечьменб

 FIRST STAGE 1 Direction 11 SECOND STAGE 22 117 24 135 26 Parallel Straight Lines 29 Angles of a Polygon 37 118 47
 If a straight line touch a circle and from 193 To construct an interior common tangent to two circles 201 MISCELLANEOUS EXERCISES 211 235 212 PAGE 219 CONSTRUCTION To find the fourth proportional to three 225 AREAS OF SIMILAR FIGURES 237 PARALLEL STRAIGHT LINES 259

 Congruent Triangles 49 Miscellaneous Exercises 60 Drawing to Scale 66 120 71 BOOK I 75 CONTINUOUS CHANGE OF A FIGURE 86 Area by counting squaressquared paper 90 SUBDIVISION OF A STRAIGHT LINE 96 SYMMETRY 106 AREA OF PARALLELOGRAM 117 AREA OF POLYGON 124 If a triangle and a parallelogram stand 127 Projections 136 MISCELLANEOUS EXERCISES 145 PRELIMINARY 149 ARCS ANGLES CHORDS 156 In equal circles or in the same circle 158 THE TANGENT 166 ANGLES AT A POINT 171 CONTACT OF CIRCLES 174 If the line joining two points subtends 186
 ANGLES OF A TRIANGLE A POLYGON 265 INEQUALITIES 273 INDEX AND LIST OF DEFINITIONS 297 PAGE 1 Perpendicular positions of Lines and Planes 11 Skew Straight Lines 20 96 22 sired by half 26 The Prism 25 140 32 The Cylinder 33 169 37 The Pyramid 40 181 43 195 46 The Sphere 48 243 54 The Solid Angle 60 Coordinates in Space 72 MISCELLANEOUS EXERCISES 93 ANSWERS 105

### ДзмпцйлЮ брпурЬумбфб

УелЯдб xiii - In a right.angled triangle, the square on the hypotenuse is equal to the sum of the squares on the sides containing the right angle . . . . 130 Applications of Pythagoras' theorem . . . . 132 THEOREM 6.
УелЯдб xxi - Of all the straight lines that can be drawn to a given straight line from a given point outside it, the perpendicular is the shortest.
УелЯдб xi - The locus of a point which is equidistant from two intersecting straight lines consists of the pair of straight lines which bisect the angles between the two given lines.