Practical Geometry

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Contents

Measurement of Lines and Angles
1
Scale Drawing I not requiring the use of parallels
13
Parallel Straight Lines
20
Angles of a Triangle of a Polygon
30
Construction of Triangles and Polygons
36
Practical Constructions
48
Scale Drawing III
55
Symmetry about a Centre
67
The Circle Angle Properties
161
Area of Circle
175
Miscellaneous Exercises III
183
Solids of uniform cross
197
The Cone
208
Plane and lino at right angles p 212 Line inclined to plane
214
The Sphere
220
The Regular Solids
226

Loci
73
Miscellaneous Exercises I
80
Similar Figures
86
Area 10JL
101
The Theorem of Pythagoras
114
Miscellaneous Exercises II
120
The Circle Arcs
135
The Circle Tangents
146
Contact of Circles Common Tangents
152
Revision Papers B
234
IndexList of Definitions
251
THEOREMS
1
Play fairs axiom 7
7
i The opposite angles of a parallelogram are equal 21
21
Of all the straight lines that can be drawn to
28
Extension of Pythagoras theorem In an obtuse
53
The tangent at any point of a circle and the radius
60
If a straight line touch a circle and from the point
66

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Page xii - If two triangles have two angles of the one equal to two angles of the other, each to each, and also one side of the one equal to the corresponding side of the other, the triangles are congruent.

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