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Libros Libros 91 - 100 de 117 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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New Maths in Action

2002 - 104 páginas
...(not the included angle) - the ambiguous case Fl 6. The exterior angles of a triangle FS4 Know that the exterior angle of a triangle is equal to the sum of the two interior opposite angles ....Q^r.... The triangle The sum of the angles of a triangle 1 Calculate the size of...
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New national framework mathematics: Workbook, Volumen8

M. J. Tipler - 2004 - 132 páginas
...triangles Angle x is an interior angle of the triangle. Angle v is an exterior angle ol the triangle. The exterior angle of a triangle is equal to the sum of the two opposite interior angles. „pie / = 47° + 58c = 105° Quick questions Find the value x. ab...
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Excel HSC Mathematics

Lyn Baker - 2001 - 288 páginas
...[vertically opposite ZADC] ZDEF + 65°+48°= 180° [angle sum of atriangle] л ZDEF =67° С Exterior Angles The exterior angle of a triangle is equal to the sum of the /a° interior opposite angles. (a + b) Example: Find the value of x. (а) ч 67o (b) Solution:...
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Mathematics 9, Volumen9

M. J. Tipler - 2003 - 464 páginas
...interior angles of a triangle add to 180° Example m + 57° + 64° = 1 80° m = 180° -57° -64° = 59° The exterior angle of a triangle is equal to the sum of the two opposite interior angles. Example / = 47° + 58° = 105° Practice Questions 4, 5, 17, 40 Angles...
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Connections Maths 9, Volumen9

Ajit Kalra, James Stamell - 2004 - 593 páginas
...important rules about the angles in triangles: The sum of the interior angles of a triangle is 180°. and The exterior angle of a triangle is equal to the sum of the 2 interior opposite angles. Examples Find the size of the unknown angle in AABC. a + 55 + 30 =...
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Connections Maths 9, Volumen9

Ajit Kalra, James Stamell - 2004 - 431 páginas
...important rules about the angles in triangles: The sum of the interior angles of a triangle is 180°. an(j The exterior angle of a triangle is equal to the sum of the 2 interior opposite angles. Examples Find the size of the unknown angle in AABC. B a + 55 + 30...
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Maths Connect

Dave Kirkby - 2004 - 214 páginas
...equal. A proof is a way of showing a fact is always true. See the example below. A/ Example Prove that the exterior angle of a triangle is equal to the sum of the two opposite interior angles. r + s + 0( = 1g>0° <\ + p = 180° r+s + oi=q + p r+ s = p This proves...
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Maths Connect

Dave Kirkby, Sue Bright - 2005 - 215 páginas
...180° Know and use the fact that the sum of the angles in a quadrilateral is 360° Understand that the exterior angle of a triangle is equal to the sum of the two interior opposite angles interior exterior The sum of the angles in any triangle is 180°: a+b+c= 180° An interior...
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Connections Maths 10, Volumen10

Ajit Kalra, James Stamell - 2005 - 574 páginas
...(corresponding angles) Add equations (7) and (2): ¿ACE + ¿ECD = ¿A + ¿B .-. ¿ACD = ¿A + ¿B .-. the exterior angle of a triangle is equal to the sum of the two interior opposite angles. Property 3 If two sides of a triangle are equal, the angles opposite those sides are...
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The National Curriculum: handbook for secondary teachers in England : key ...

2005 - 222 páginas
...parallelograms and a proof that the angle sum of a triangle is 1 80 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 b use angle properties of equilateral, isosceles and...
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