The Elements of geometry [Euclid book 1-3] in general terms, with notes &c. &c. Also a variety of problems & theorems. [Ed. by J. Luby. With] The elements of plane geometry, comprising the definitions of the fifth book, and the sixth book in general terms, with notes [&c.] by J. Luby [described as] Pt. 31821 |
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Αποτελέσματα 1 - 5 από τα 86.
Σελίδα 3
... given one ; those three lines form an equilateral triangle . For each of the drawn lines is equal to the given line as being radii of the same circle , and they are .. each other ( per ax . 1. ) to Note . - No more than two equilateral ...
... given one ; those three lines form an equilateral triangle . For each of the drawn lines is equal to the given line as being radii of the same circle , and they are .. each other ( per ax . 1. ) to Note . - No more than two equilateral ...
Σελίδα 4
... given line as centre , and the given line as radius , describe a circle whose circumference shall meet the leg of the equilateral triangle produced , through the connected point ; with the vertex of equilat . tri . as centre , and whole ...
... given line as centre , and the given line as radius , describe a circle whose circumference shall meet the leg of the equilateral triangle produced , through the connected point ; with the vertex of equilat . tri . as centre , and whole ...
Σελίδα 8
... given indefinite right line from a given point without it . Assume any point on the other side of the line and from the given point as centre with the assumed point as radius describe a circle , cutting the given line in two points ...
... given indefinite right line from a given point without it . Assume any point on the other side of the line and from the given point as centre with the assumed point as radius describe a circle , cutting the given line in two points ...
Σελίδα 25
... radius , describe a circle and from the other extremity of produced part erect a per- pendicular to meet its ... given triangle . Therefore these two triangles are equilateral to one another and therefore equi - angular . Therefore the ...
... radius , describe a circle and from the other extremity of produced part erect a per- pendicular to meet its ... given triangle . Therefore these two triangles are equilateral to one another and therefore equi - angular . Therefore the ...
Σελίδα 32
... circle might be described ( through the three points C , B , A , ) of which AC would be a diameter . Or , it may ... given points ( CH ) right lines making equal angles at the same point of a line ( AB ) given in position . Fig . 9 ...
... circle might be described ( through the three points C , B , A , ) of which AC would be a diameter . Or , it may ... given points ( CH ) right lines making equal angles at the same point of a line ( AB ) given in position . Fig . 9 ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
adjacent ANALYSIS angle ABC angle contained arches bisecting line chord circumference connecting line conterminous dedu describe a circle diagonal diameter directum divided draw a right drawn line equiangular equilateral triangle evident external angle extremity given angle given circle given in position given line given point given ratio given right line given side gonal half the given hypothenuse inscribed intercept intersect isosceles triangle less lesser let fall line bisecting lines be drawn magnitude mean proportional meet middle point opposite angle opposite side parallelogram pass pendicular perpen perpendicular point of bisection point of contact point of section polygons PORISMS PROB PROP radii radius rect rectangle required triangle right angled triangle right line drawn segts semicircle semiperimeter side subtending square Suppose tangent THEOR triangle ABC vertex vertical angle whole line
Δημοφιλή αποσπάσματα
Σελίδα 128 - The angle at the centre of a circle is double the angle at the circumference on the same arc.
Σελίδα 26 - IF three straight lines be proportionals, the rectangle contained by the extremes is equal to the square of the mean ; and if the rectangle contained by the extremes be equal to the square of the mean, the three straight lines are proportionals.
Σελίδα 111 - In any triangle, the square of the side subtending an acute angle is less than the sum of the squares of the...
Σελίδα 4 - A straight line is said to be cut in extreme and mean ratio, when the whole is to the greater segment as the greater segment is to the less.
Σελίδα 98 - If a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.
Σελίδα 2 - Convertendo ; when it is .concluded, that if there be four magnitudes proportional, the first is to the sum or difference of the first and second, as the third is to the sum or difference of the third and fourth.
Σελίδα 20 - DE : but equal triangles on the same base and on the same side of it, are between the same parallels ; (i.
Σελίδα 116 - If any two points be taken in the circumference of a circle, the straight line which joins them shall fall within the circle.
Σελίδα 156 - The sum of the squares of the sides of any quadrilateral is equal to the sum of the squares of the diagonals plus four times the square of the line joining the middle points of the diagonals.
Σελίδα 28 - Similar triangles are to one another in the duplicate ratio of their homologous sides.