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 書籍 ABC a perpendicular is drawn to the opposite side, meeting it, produced if necessary,... の書籍検索結果 15 件中 1 - 10 件目 ABC a perpendicular is drawn to the opposite side, meeting it, produced if necessary, at D ; from the angle B a perpendicular is drawn to the opposite side, meeting it, produced if necessary, at E: shew that the straight lines which join... A Sequel to the First Six Books of the Elements of Euclid: Containing an ... - 19 ページ
John Casey 著 - 1882 - 158 ページ ## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1867 - 400 ページ
...meeting at F. Shew that the angle CFB is equal to half the sum of the angles EAC, EDB. 69. The straight line joining the middle point of the hypotenuse of a right-angled triangle to the right angle is equal to half the hypotenuse, 60. From the angle A of a triangle ABC a perpendicular is drawn to the... ## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1867 - 400 ページ
...meeting at F. Shew that the angle CFB is equal to half the sum of the angles EAC, EDB. 69. The straight line joining the middle point of the hypotenuse of a right-angled triangle to the right angle is equal to half the hypotenuse. 60. From the angle A of a triangle ABC a perpendicular is drawn to the... ## The Elements of Euclid for the Use of Schools and Colleges: With Notes, an ...

Isaac Todhunter - 1880 - 400 ページ
...meeting at F. Shew that the angle CFB is equal to half the sum of the angles EAC, EDB. 59. The straight line joining the middle point of the hypotenuse of a right-angled triangle to the right angle is equal to half the hypotenusa 60. From the angle A of a triangle ABC a perpendicular is drawn to the... ## Twelve years' Queen's scholarship questions

Education Ministry of - 1882
...triangles are equal. 3. Draw the figure required for Euclid, Book I., Prop. If perpendiculars bo drawn from the middle point of the hypotenuse of a right-angled triangle to the two sides, the square on the hypotenuse will be equal to four times the sum of the squares on the two... ## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1883 - 400 ページ
...meeting at F. Shew that the angle CFB is equal to half the sum of the angles EAC, EDB 69. The straight line joining the middle point of the hypotenuse of a right-angled triangle to the right angle is equal to half the hypotenusa 60. From the angle A of a triangle ABC a perpendicular is drawn to the... ## An introduction to geometry, consisting of Euclid's Elements, book i ..., 第 1 巻

Euclides - 1884
...right angles. If the figure wore a hexagon, the angles would be equal to four right 4. The straight line joining the middle point of the hypotenuse of a right-angled triangle to the right angle, is equal to half the hypotenuse. 5. Construct a right-angled triangle, having given the hypotenuse and... ## The Elements of Euclid, books i. to vi., with deductions, appendices and ...

Euclides - 1884
...of two sides of a triangle is || the third side, and = half of it. 2. Hence prove that the straight line joining the middle point of the hypotenuse of a right.angled triangle to the opposite vertex = half the hypotenuse. 3. The middle points of the sides of any quadrilateral are the... ## A Sequel to the First Six Books of the Elements of Euclid: Containing an ...

John Casey - 1886 - 224 ページ
...extremities of the base ^ s of an isosceles A right lines are drawn _L to the sides, prove that the base L s of the A are each = half the L between the _Ls....a minimum. 32. If from the extremities A, B of the hase of a A ABC ±s AD, BE be drawn to the opposite sides, prove that AB" = AC . AE + BC . BD. 33.... ## A SEQUEL TO THE FIRST SIX BOOKS OF THE ELEMENTS OF EUCLID

JOHN CASEY - 1888
...extremities of the hase £s of an isosceles A right lines are drawn _L to the sides, prove that the base L s of the A are each = half the L between the _Ls....hypotenuse. 31. The lines joining the feet of the Is of a A form an inscribed A whose perimeter is a minimum. 32. If from the extremities A, B of the... ## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid, Robert Simson - 1892 - 518 ページ
...produced to D, 20 that AD is equal to BA ; if DC is drawn, shew that BCD is a right angle. 2. The straight line joining the middle point of the hypotenuse of a right.angled triangle to the right angle is equal to half the hypotenuse. 3. From the extremities of the base of a triangle perpendiculars are...