Marks' first lessons in geometry / In two parts. Objectively presented, and designed for the use of primary classes in grammar schools, academies, etc.

by Bernhard Marks

CONTENTS.

PART I.
Lines	[9]
Points	[9]
Crooked Lines	[10]
Curved Lines	[11]
Straight Lines	[11]
Other Lines	[11]
Positions of Lines	[14]
Angles	[17]
Relations of Angles	[20]
Adjacent Angles	[20]
Vertical Angles	[21]
Kinds of Angles	[23]
Right Angles	[23]
Acute Angles	[24]
Obtuse Angles	[24]
Relations of Lines	[27]
Perpendicular Lines	[27]
Parallel Lines	[28]
Oblique Lines	[28]
Interior Angles	[30]
Exterior Angles	[31]
Opposite Angles	[32]
Alternate Angles	[33]
Problems relating to Angles	[38]
Polygons	[40]
Triangles	[44]
Isosceles Triangles	[48]
Problems relating to Triangles	[53]
Quadrilaterals	[55]
Parallelograms	[59]
Comparison and Contrast of Figures	[62]
Measurement of Surfaces	[66]
Problems relating to Surfaces	[71]
The Circle and its Lines	[73]
Arcs and Degrees	[78]
Parts of the Circle	[82]
PART II.
AXIOMS AND THEOREMS.
Axioms. Illustrated	[85]
Theorems. Illustrated	[88]

FIRST LESSONS IN GEOMETRY.