Geometrical Problems Deducible from the First Six Books of Euclid, Arranged and Solved: To which is Added an Appendix Containing the Elements of Plane Trigonometry ...J. Smith, 1819 - 377 σελίδες |
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Αποτελέσματα 1 - 5 από τα 84.
Σελίδα xxiv
... equiangular pentagon be produced to meet ; the angles formed by these lines are together equal to two right angles . 25. If the sides of an equilateral and equiangular hexagon be pro- duced to meet ; the angles formed by these lines are ...
... equiangular pentagon be produced to meet ; the angles formed by these lines are together equal to two right angles . 25. If the sides of an equilateral and equiangular hexagon be pro- duced to meet ; the angles formed by these lines are ...
Σελίδα xxvi
... equiangular and equal to the given triangle . 43. If from the angular points of the squares described upon the sides of a right - angled triangle perpendiculars be let fall upon the hypothenuse produced ; they will cut off equal ...
... equiangular and equal to the given triangle . 43. If from the angular points of the squares described upon the sides of a right - angled triangle perpendiculars be let fall upon the hypothenuse produced ; they will cut off equal ...
Σελίδα xxxii
... equiangular pentagon , and of the same altitude . 6. To describe an equilateral triangle , equal to a given isosceles triangle . 7. To describe a parallelogram , the area and perimeter of which shall be respectively equal to the area ...
... equiangular pentagon , and of the same altitude . 6. To describe an equilateral triangle , equal to a given isosceles triangle . 7. To describe a parallelogram , the area and perimeter of which shall be respectively equal to the area ...
Σελίδα xxxiii
... equiangular pentagon , to inscribe a square . 30. In a given triangle , to inscribe a rhombus , one of whose angles shall be in a given point in the side of the triangle . 31. To inscribe a circle in a given quadrant . 32. To describe a ...
... equiangular pentagon , to inscribe a square . 30. In a given triangle , to inscribe a rhombus , one of whose angles shall be in a given point in the side of the triangle . 31. To inscribe a circle in a given quadrant . 32. To describe a ...
Σελίδα xxxv
... intercepted between the circumferences which are concave to each other , will be equal respectively to those of the other between the other circumferences . 58. If the diagonals of an equilateral and equiangular pentagon CONTENTS . XXXV.
... intercepted between the circumferences which are concave to each other , will be equal respectively to those of the other between the other circumferences . 58. If the diagonals of an equilateral and equiangular pentagon CONTENTS . XXXV.
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD angle ABC angles at F base centre chord circle ABC circles cut circles touch circumference describe a circle divided draw a line draw the diameter drawn parallel duplicate ratio equal angles equiangular Eucl extremities G draw given angle given circle given in position given line given point given ratio given square given straight line given triangle intercepted isosceles triangle Join AE Join BD Let AB Let ABC let fall line given line joining line required lines be drawn lines drawn mean proportional opposite side parallel to BC parallelogram pendicular point of bisection point of contact point of intersection point required radius rectangle right angles segments semicircle shewn tangent touching the circle trapezium triangle ABC
Δημοφιλή αποσπάσματα
Σελίδα 14 - IF a straight line be divided into two equal, and also into two unequal parts ; the squares of the two unequal parts are together double of the square of half the line, and of the square of the line between the points of section.
Σελίδα xiii - 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 230 - To describe an isosceles triangle, having each of the angles at the base double of the third angle.
Σελίδα 327 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Σελίδα 158 - Iff a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other...
Σελίδα 212 - FC are equal to one another : wherefore the circle described from the centre F, at the distance of one of them, will pass through the extremities of the other two, and be described about the triangle ABC.
Σελίδα 123 - If from a point, without a parallelogram, there be drawn two straight lines to the extremities of the two opposite sides, between which, when produced, the point does not lie, the difference of the triangles thus formed is equal to half the parallelogram. Ex. 2. The two triangles, formed by drawing straight lines from any point within a parallelogram to the extremities of its opposite sides, are together half of the parallelogram.
Σελίδα 305 - Given the vertical angle, the difference of the two sides containing it, and the difference of the segments of the base made by a perpendicular from the vertex ; construct the triangle.
Σελίδα 247 - The perpendicular from the vertex on the base of an equilateral triangle is equal to the side of an equilateral triangle inscribed in a circle, whose diameter is the base.
Σελίδα 299 - AB be equal to the given bisecting line ; and upon it describe a segment of a circle containing an angle equal to the given angle.