## Euclidian Geometry |

### From inside the book

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**equilateral**triangle is one which has all its sides equal . A circle is a plane figure contained by one line called the circumference , and is such that all straight lines drawn from a certain point within the figure to the ... Page 11

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**equilateral**triangle upon AB . With A as centre , and radius AB , describe the circle BCD , and with B as centre and radius BA describe the circle ACE . and Let these circles intersect in C ; join CA , CB . Then ABC shall be the**equilateral**... Page 46

... is a 7 , .. AD is BC , ( I. 26 ) and AB is = DC , ( 1. 26 ) also , by hypothesis , AB is = AD ; .. ABCD is

... is a 7 , .. AD is BC , ( I. 26 ) and AB is = DC , ( 1. 26 ) also , by hypothesis , AB is = AD ; .. ABCD is

**equilateral**. It is also rectangular ; .. ABCD is a square . PROPOSITION XXIX . If the sides and angles of one 46 QUADRILATERALS . Page 51

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**equilateral**; also . ( 1. 27 ) BAH is a 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 ... Page 74

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**equilateral**a ; with centre A and radius AB describe a O cutting QA produced in R. I Q B R With centre Q and radius QR describe a cutting QC produced in X. Then CX shall be the line required . For QX = QR ; · QA is = QC ; Q is centre of ...### 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