Elementary Geometry |
Contents
Angles | 7 |
Regular polygons | 17 |
71 | 18 |
Pyramids the Tetrahedron | 26 |
Parallels and perpendiculars | 35 |
Cube cuboid prism wedge | 42 |
Heights and distances | 48 |
Points lines surfaces solids | 55 |
80 | 106 |
MISCELLANEOUS EXERCISES | 115 |
If two angles of a triangle are unequal | 122 |
PARALLELOGRAMS | 132 |
SUBDIVISION OF A STRAIGHT LINE | 140 |
The locus of a point which is equidistant | 146 |
COORDINATES 9 | 152 |
888 | 156 |
THEORETICAL GEOMETRY | 63 |
If the sum of two adjacent angles is equal | 67 |
1 a pair of alternate angles are equal | 71 |
Straight lines which are parallel to the same | 77 |
terior angle so formed is equal to the sum of | 80 |
+ See note pe vii | 93 |
If two angles of a triangle are equal | 96 |
CONSTRUCTIONS | 103 |
AREA OF POLYGON | 179 |
If a triangle and a parallelogram stand | 185 |
MISCELLANEOUS EXERCISES ON AREA | 186 |
12 | 193 |
If a triangle is such that the square on | 199 |
D abČaČ+bČ2ab | 206 |
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Common terms and phrases
AABC acute angle altitude angles are equal angles equal base BC bisects centimetres centre Constr Construct a triangle Data ABC divided Draw a diagonal Draw a parallelogram Draw a straight drawn perpendicular edge equal sides equidistant equilateral triangle equivalent parallelogram equivalent triangle exterior angles find a point Find the area Freehand Give a proof given angle given line given point given straight line height hypotenuse inch paper isosceles trapezium isosceles triangle LADC LAOB Measure median miles obtuse obtuse-angled opposite sides pair parallelogram ABCD pentagon perimeter perpendicular bisector polygon produced protractor prove Q. E. D. Ex quadrilateral ABCD radius rectangle regular polygons Repeat Ex rhombus right angles right-angled triangle set square Show sides equal square inch straight edge straight line joining THEOREM triangle ABC triangles are congruent vertex yards
Popular passages
Page xiv - If there are three or more parallel straight lines, and the intercepts made by them on any straight line that cuts them are equal, then the corresponding intercepts on any other straight line that cuts them are also equal.