## Elements of Geometry, Briefly, Yet Plainly Demonstrated by Edmund Stone |

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ABCD abfurd added alfo alſo Altitude Arch Bafe Baſe becauſe bifect Book Center Circle Circumference common Cone confequently conft contained Continue COROL Cylinder defcribed Diameter divided draw drawn EFGH equal equiangular equilateral faid fall fame fecond fhall Figure fimilar fince folid fome fore four fourth given gles greater half Hence join lefs likewife Magnitudes manner meet Multiple Number oppofite parallel Parallelepipedons Parallelogram perpendicular Plane Point Prifms Probl PROP Proportion Pyramids Ratio Rectangle remaining right Angles right Line AC right-lined SCHOL SCHOLIU Segment ſhall Sides Solid Sphere Square taken thing third thofe thro touch Triangle Triangle ABC Whence whofe whole

### Popular passages

Page 31 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.

Page 145 - Equal triangles which have one angle of the one equal to one angle of the other, have their sides about the equal angles reciprocally proportional : And triangles which have one angle in the one equal to one angle in the other, and their sides about the equal angles reciprocally proportional, are equal to one another.

Page 33 - ABD, is equal* to two right angles, «13. 1. therefore all the interior, together with all the exterior angles of the figure, are equal to twice as many right angles as there are sides of the figure; that is, by the foregoing corollary, they are equal to all the interior angles of the figure, together with four right angles; therefore all the exterior angles are equal to four right angles.

Page 27 - If two right-angled triangles have their hypotenuses equal, and one side of the one equal to one side of the other, the triangles are congruent.

Page 31 - The three angles of any triangle taken together are equal to the three angles of any other triangle taken together. From whence it follows, 2.

Page 11 - That a straight line may be drawn from any point to any other point. 2. That a straight line may be produced to any length in a straight line.