## Euclidian Geometry |

### From inside the book

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**parallelogram**. O circle . Oce circumference . 1 perpendicular ( to ) . || parallel . + together with . = equal to . > greater than . < less than . ... because . ... therefore . : is to . The object aimed at is merely to place before ... Page 44

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**parallelogram**is a four - sided figure , of which the opposite sides are parallel . The straight line joining the opposite angles of a quad- rilateral figure is called a diagonal . PROPOSITION XXVI . The opposite sides and angles of a ... Page 45

... opposite to these are right △ s . ( 1.26 ) DEFINITION . A rectangle is a right - angled

... opposite to these are right △ s . ( 1.26 ) DEFINITION . A rectangle is a right - angled

**parallelogram**, and is said to be contained by any two of its adjacent sides . DEFINITION . A square is a four - sided figure QUADRILATERALS . 45. Page 51

... right △ ; ... all the 4 s of AK are right △ s ; ..the AK is both equilateral and rectangular , and is .. a square . AREAS . PROPOSITION XXXI .

... right △ ; ... all the 4 s of AK are right △ s ; ..the AK is both equilateral and rectangular , and is .. a square . AREAS . PROPOSITION XXXI .

**Parallelograms**on the same base 4-2 QUADRILATErals and MULTILATERALS . 51 PROBLEM K. ... Page 52

Francis Cuthbertson. AREAS . PROPOSITION XXXI .

Francis Cuthbertson. AREAS . PROPOSITION XXXI .

**Parallelograms**on the same base and between the same parallels are equal . 4 . Ꭰ E F A E D F B C B C Let the SABCD , EBCF be on the same base BC , and between the same parallels AF , BC ...### Other editions - View all

### Common terms and phrases

Algebra base Cambridge centre chord circumference cloth Conic Sections Crown 8vo Describe a circle diagonals diameter divided draw a straight ELEMENTARY TREATISE English equiangular equilateral Euclid Examples Extra fcap fcap GEOMETRY given angle given circle given point given straight line Grammar greater H Let Hence inscribed intersecting isosceles triangle Latin Let ABC line bisecting locus Mathematical meet opposite angles Owens College parallel parallelogram perimeter perpendicular plane polygon PROBLEM produced Professor proportional PROPOSITION ratio rect rectangle rectangle contained rectilineal figure regular polygon respectively revised rhombus right angles Schools Second Edition segment similar Similarly squares on AC straight line drawn straight line joining tangent THEOREM TRIGONOMETRY twice rectangle twice the squares vertex