بحث صور خرائط YouTube الأخبار Gmail Drive تقويم المزيد »
تسجيل الدخول
 الكتب الكتب 91 - 100 من 195 فيTherefore all the angles of the figure, together with four right angles, are equal.... Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides. A Popular Course of Pure and Mixed Mathematics ...: With Tables of ... - الصفحة 181
بواسطة Peter Nicholson - 1825 - عدد الصفحات: 372
عرض كامل - حول هذا الكتاب Elements of Geometry and Trigonometry: From the Works of A.M. Legendre ...

Charles Davies, Adrien Marie Legendre - 1854 - عدد الصفحات: 432
...triangles in the figure ; that is, as many times as there are sides, less two. But this product is equal to twice as many right angles as the figure has sides, less four right angles. Cor. 1. The sum of the interior angles in a quadrilateral is equal to two right...
عرض كامل - حول هذا الكتاب The Elements of geometry; or, The first six books, with the eleventh and ...

Euclides - 1855
...equal (Ax. 1) to two right angles. Wherefore, if a side of any triangle be produced, &c. QED СOR. 1. — All the interior angles of any rectilínea]...twice as many right angles as the figure has sides. Let AB С DE be any rectilineal figure. All the interior angles ABС, BСD, &c. together with four...
عرض كامل - حول هذا الكتاب A Treatise on Land-Surveying Comprising The Theory Developed from Five ...

...proposition of Geometry, that in any figure bounded by straight lines, the sum of all the interior angles is equal to twice as many right angles, as the figure has sides less two ; since the figure can be divided into that number of triangles. Hence this common rule. "...
عرض كامل - حول هذا الكتاب The geometry of the three first books of Euclid, by direct proof from ...

Euclides - 1856
...vertex of the triangles ; that is, together with four right angles. Therefore all the angles of the figure, together with four right angles, are equal...twice as many right angles as the figure has sides. XVI. If two triangles have two sides of the one equal to two sides of the other, each to each, and...
عرض كامل - حول هذا الكتاب Cambridge examination papers: a suppl. to the University calendar, 1856-59

...also without construction, by superposition. 3. Prove that all the internal angles of any rectilineal figure, together with four right angles, are equal...twice as many right angles as the figure has sides; and that all the external angles are together equal to four right angles. In what sense are these propositions...
عرض كامل - حول هذا الكتاب The Popular Educator, المجلد 5

1856
...triangles thus formed are equal to all the angles of the figure (Const.) ; therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure nas sides (Лх. 1). QED The demonstration of Euclid's Cor. II. viz. "that all the pxterior angles...
عرض كامل - حول هذا الكتاب Elementary text book for young surveyors and levellers

Henry James Castle - 1856 - عدد الصفحات: 185
...that these angles are the exterior angles of an irregular polygon ; and as the sum of all the interior angles are equal to twice as many right angles, as the figure has sides, wanting four ; and as the sum of all the exterior, together with all the interior angles, are equal...
عرض كامل - حول هذا الكتاب A Treatise on Land-surveying: Comprising the Theory Developed from Five ...

William Mitchell Gillespie - 1856 - عدد الصفحات: 464
...proposition of Geometry, that in any figure bounded by straight lines, the sum of all the interior angles is equal to twice as many right angles, as the figure has sides less two ; since the figure can be divided into that number of triangles. Hence this common rule. "...
عرض كامل - حول هذا الكتاب Mathews' Euclid examination papers ... on Euc. i.-iv

Edward Harri Mathews - 1879
...one 'of the angular points of a rectilineal figure to each of the others, that its interior angles together with four right angles are equal to twice as many right angles as the figures has sides. 3. The opposite sides and angles of parallelograms are equal to one another. A quadrilateral...
عرض كامل - حول هذا الكتاب The solution of geometrical exercises, explained and illustrated; with a ...

Charles Mansford - 1879 - عدد الصفحات: 104
...figure with each of the other angles that the interior angles of any rectilineal figure together with 4 right angles are equal to twice as many right angles as the figure has sides. (32.) 113. If two angles have their containing sides respectively parallel to one another the lines...
عرض كامل - حول هذا الكتاب