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Libros Libros 71 - 80 de 116 sobre To prove that the exterior angle of a triangle is equal to the sum of the two interior...
" To prove that the exterior angle of a triangle is equal to the sum of the two interior opposite angles (see fig. "
A complete system of mensuration, with additions by J. Trotter - Página 144
por Alexander Ingram - 1851
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STP National Curriculum Mathematics, Volumen9,Parte1

Linda Bostock - 2001 - 448 páginas
...also lead to another useful tact about angles in triangles: (2) and (3) => f°+g° = q° + r° ie an exterior angle of a triangle is equal to the sum of the two interior opposite angles. Because this proof does not involve measuring angles in a particular triangle it applies...
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Edexcel GCSE Mathematics: Higher course

Keith Pledger - 2001 - 645 páginas
...equilateral isosceles right-angled scalene Interior angles of a triangle add up to 180°. a+h + c= 180° 7 The exterior angle of a triangle is equal to the sum of the interior opposite angles. 8 A polygon with four sides is called a quadrilateral. A quadrilateral...
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Excel HSC Maths Topic by Topic Exam Questions

J. Compton, Allyn Jones - 2000 - 284 páginas
...+ b + с + d + e = 360 d° e 2. Triangles (a) Angle sum of a triangle is 180°. a + b + c= 180 (b) The exterior angle of a triangle is equal to the sum of the opposite interior angles. A С D (c) In an isosceles triangle the base angles are equal. Given...
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Edexcel GCSE Modular Mathematics Examples and Practice: Intermediate stage 1

Karen Hughes - 2001 - 118 páginas
...corresponding angles • Angles on a straight line add up to 180°. Angles in a triangle add up to 180°. The exterior angle of a triangle is equal to the sum of the interior angles at the other two vertices. Vertically opposite angles are equal. Base angles of...
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Key Maths: 8, Volumen8

David Baker - 2001 - 544 páginas
...parallelograms and a proof that the angle sum of a triangle is 180 degrees; understand a proof that the exterior angle of a triangle is equal to the sum of the interior angles at the other two vertices 2(d) Use angle properties of equilateral, isosceles and...
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Certificate Mathematics: A Revision Course for the Caribbean

Alex Greer, Clarrie Layne - 2001 - 496 páginas
...Fig. 29.9 Since the three angles of a triangle add up to 180°, x + 42 + 68 = 180 x = 180-42-68 = 70 The exterior angle of a triangle is equal to the sum of the opposite interior angles. Hence: y = 42 + 68 = 110 Therefore the angle j is 110°. Exercise 141...
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Mathematics N1, Tema 1

2001 - 181 páginas
...of the interior angles of a triangle is equal to 180°. [Abbreviation: < sum of _] X + Y + Z = 180° The exterior angle of a triangle is equal to the sum of the opposite interior angles. [Abbreviation: ext. < of ¿1] C, = A + B ie C, = * + Note: An exterior...
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New national framework mathematics: Teacher planning pack, Volumen7

2003 - 324 páginas
...understand a proof that: - the sum of the angles of a triangle is 180* and of a quadrilateral is 360° - the exterior angle of a triangle is equal to the sum of the two interior opposite anglesChapter 1 1 Lines and Angles Parallel and perpendicular lines page 287 Angles page 29...
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Arabic Astronomy in Sanskrit: Al-Birjandī on Tadhkira II, Chapter 11, and ...

ʻAbd al-ʻAlī ibn Muḥammad ibn Ḥusayn Birǧandī - 2002 - 287 páginas
...Add. Let us mention the principle concerning this. However, it is established on the condition that an exterior angle of a triangle is equal to (the sum of) the two interior (angles) opposite (to it). This is not correct in the case of a triangle resulting from the arcs of...
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STP National Curriculum Mathematics 11B

L. Bostock - 2002 - 424 páginas
...statement leads to another useful fact about angles in triangles: (2)and(3)=>/' +g = q° + r° ie an exterior angle of a triangle is equal to the sum of the two interior opposite angles. Because this proof does not involve measuring angles in a particular triangle it applies...
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