Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with Explanatory Notes .... the first six booksJ. W. Parker & son, 1860 - 361 σελίδες |
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Αποτελέσματα 1 - 5 από τα 28.
Σελίδα 47
... units ; and two concrete numbers are equal , when they contain the same number of units of the same kind of magnitude . It is at once ob- vious , that Arithmetical representations of Geometrical magnitudes are not admissible in Euclid's ...
... units ; and two concrete numbers are equal , when they contain the same number of units of the same kind of magnitude . It is at once ob- vious , that Arithmetical representations of Geometrical magnitudes are not admissible in Euclid's ...
Σελίδα 57
... units in a side of the square be given , as is shewn in the note on Prop . I. , Book II . The student will not fail to remark the analogy which exists between the area of a square and the product of two equal numbers ; and between the ...
... units in a side of the square be given , as is shewn in the note on Prop . I. , Book II . The student will not fail to remark the analogy which exists between the area of a square and the product of two equal numbers ; and between the ...
Σελίδα 58
... units , then the square root of 9 or 3 , indicates the number of lineal units in the side of that square . Again , if the area of a square contain 12 square units , the side of the square is greater than 3 , but less than 4 lineal units ...
... units , then the square root of 9 or 3 , indicates the number of lineal units in the side of that square . Again , if the area of a square contain 12 square units , the side of the square is greater than 3 , but less than 4 lineal units ...
Σελίδα 61
... units or one with three lines whose lengths are 1 , √2 , √3 , ? 53. Is it possible to construct a triangle whose angles shall be as the numbers 1 , 2 , 3 ? Prove or disprove your answer . 54. What is the reason of the limitation in ...
... units or one with three lines whose lengths are 1 , √2 , √3 , ? 53. Is it possible to construct a triangle whose angles shall be as the numbers 1 , 2 , 3 ? Prove or disprove your answer . 54. What is the reason of the limitation in ...
Σελίδα 99
... unit , and the length of every other line is represented by the number of linear units , contained in it . The square is the figure assumed for the measure of surfaces . The square unit or the unit of area is assumed to be that square ...
... unit , and the length of every other line is represented by the number of linear units , contained in it . The square is the figure assumed for the measure of surfaces . The square unit or the unit of area is assumed to be that square ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
A₁ ABCD AC is equal Algebraically angle ABC angle ACB angle BAC Apply Euc axiom base BC chord circle ABC constr describe a circle diagonals diameter divided double draw equal angles equiangular equilateral triangle equimultiples Euclid Euclid's Elements exterior angle Geometrical given circle given line given point given straight line given triangle gnomon greater hypotenuse inscribed intersection isosceles triangle less Let ABC line AC lines be drawn meet the circumference multiple opposite angles parallelogram pentagon perpendicular porism problem produced Prop proportionals proved Q.E.D. PROPOSITION quadrilateral radius ratio rectangle contained rectilineal figure remaining angle right angles right-angled triangle segment semicircle shew shewn similar similar triangles square on AC tangent THEOREM touch the circle trapezium triangle ABC twice the rectangle vertex vertical angle wherefore
Δημοφιλή αποσπάσματα
Σελίδα 54 - If two triangles have two sides of the one equal to two sides of the...
Σελίδα 89 - If a straight line be bisected, and produced to any point ; the rectangle contained by the whole line thus produced, and the part of it produced, together with the square...
Σελίδα 38 - Let ABCD be the given rectilineal figure, and E the given rectilineal angle. It is required to describe a parallelogram equal to ABCD, and having an angle equal to E.
Σελίδα 144 - The angle in a semicircle is a right angle; the angle in a segment greater than a semicircle is less than a right angle; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 18 - Any two angles of a triangle are together less than two right angles.
Σελίδα 266 - 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.
Σελίδα 152 - IF from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it ; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, shall be equal to the square of the line which touches it.
Σελίδα 7 - From a given point to draw a straight line equal to a given straight line. Let A be the given point, and BC the given straight line; it is required to draw from the point A a straight line equal to BC.
Σελίδα 3 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 96 - In obtuse-angled triangles, if a perpendicular be drawn from either of the acute angles to the opposite side produced, the square on the side subtending the obtuse angle is greater than the squares on the sides containing the obtuse angle, by twice the rectangle contained by the side...