## The Elements of Euclid [book 1] for beginners, by J. Lowres |

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### Other editions - View all

The Elements of Euclid [book 1] for Beginners, by J. Lowres Joseph Butler,Thomas Codrington,Euclides No preview available - 2018 |

The Elements of Euclid [book 1] for Beginners, by J. Lowres Joseph Butler,Thomas Codrington,Euclides No preview available - 2018 |

The Elements of Euclid [Book 1] for Beginners, by J. Lowres Joseph Butler,Thomas Codrington,Euclides No preview available - 2015 |

### Common terms and phrases

A B C ABCD absurd alternate angles angle ABC angle ACB angle BAC angle equal angles AGF applied base BC bc is equal bisect Book called centre circle coincide common Const Construction demonstrated describe diagonal divided double draw drawn equal Ax equal bases equal Hyp equal Prop equal sides equal to CD equilateral triangle exterior falls figure GEOMETRY given angle given line given point greater greater than BCD interior angles interior opposite angle join less Let the line line BC lines A B manner meet parallel Prop parallelogram perpendicular PROB Problem produced proposition radius rectilineal figure remaining respectively equal right angles Prop right line SCHOL Shilling side A B sides BC square standing Take THEOR theorem triangle ABC vertex whole

### Popular passages

Page 10 - Things which are halves of the same are equal to one another. 8. Magnitudes which coincide with one another, that is, which exactly fill the same space, are equal to one another.

Page 10 - Things which are equal to the same thing are also equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be subtracted from equals, the remainders are equal. 4. Things which coincide with one another are equal to one another.

Page 40 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.

Page 10 - If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles...

Page 10 - LET it be granted that a straight line may be drawn from any one point to any other point.

Page 39 - If the square described upon one of the sides of a triangle, be equal to the squares described upon the other two sides of it ; the angle contained by these two sides is a right angle.

Page 20 - If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles.

Page 29 - If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are equal to two right angles.

Page 22 - Any two sides of a triangle are together greater than the third side.

Page 10 - Things which are equal to the same thing are equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be taken from equals, the remainders are equal. 4. If equals be added to unequals, the wholes are unequal.