Create the page "Obtuse" on this wiki! See also the search results found.

Page title matches

• Obtuse triangle
  ...in which one [[angle]] is an [[obtuse angle]]. Any triangle which is not obtuse is either a [[right triangle]] or an [[acute triangle]]. ...e because the angles of a triangle must sum to <math>180^\circ</math>. Two obtuse angles would sum to more than that.
  1 KB (193 words) - 14:20, 12 June 2022
• Obtuse angle
  An '''obtuse angle''' is an [[angle]] with a [[measure]] greater than 90 [[degree (geome Any triangle with an obtuse angle is considered an [[Obtuse Triangle]]
  508 bytes (62 words) - 17:21, 2 March 2014
• Obtuse Triangle
  #REDIRECT [[Obtuse triangle]]
  29 bytes (3 words) - 17:22, 2 March 2014
• Obtuse triangles
  ...triangle that has one angle that is greater than 90, which is called and [[Obtuse Angle]].
  100 bytes (18 words) - 14:30, 7 January 2022
• Obtuse Angle
  An Obtuse angle is a angle greater than 90.
  43 bytes (8 words) - 14:31, 7 January 2022

Page text matches

• Geometric inequality
  ...a^2 + b^2 = c^2</math>. The Inequality extends this to [[obtuse triangle| obtuse]] and [[acute triangle]]s. The inequality says: ...s of length <math>a \leq b \leq c</math>, <math>a^2+b^2>c^2</math>. For an obtuse triangle with sides <math>a \leq b \leq c</math>, <math>a^2+b^2<c^2</math>.
  7 KB (1,296 words) - 14:22, 22 October 2023
• Orthic triangle
  ...rthic_triangle.png|thumb|right|300px|Case 2: <math>\triangle ABC</math> is obtuse.]] ...right. The two cases of when <math>\triangle ABC</math> is either acute or obtuse each carry different characteristics and must be handled separately.
  8 KB (1,408 words) - 11:54, 8 December 2021
• Triangle
  ===Obtuse=== ...n equilateral obtuse triangle. It is also impossible to have more than one obtuse angle in a triangle.
  4 KB (628 words) - 17:17, 17 May 2018
• Law of Cosines
  ===Obtuse Triangle=== The argument for an obtuse triangle is the same as the proof for an acute triangle.
  6 KB (1,003 words) - 09:11, 7 June 2023
• Trigonometry
  ...ing right triangles, trigonometry is just as useful when used on acute and obtuse triangles. The [[Law of Sines]] and [[Law of Cosines]] mentioned below gene
  8 KB (1,217 words) - 20:15, 7 September 2023
• Right triangle
  *[[Obtuse triangle]]
  3 KB (499 words) - 23:41, 11 June 2022
• 2021 JMC 10
  ...termine two angles of a triangle. What is the probability this triangle is obtuse?
  12 KB (1,784 words) - 16:49, 1 April 2021
• 2001 AMC 12 Problems
  ...th>E=(0,4)</math>. What is the probability that <math>\angle APB</math> is obtuse?
  13 KB (1,957 words) - 12:53, 24 January 2024
• 2006 AMC 12B Problems/Problem 23
  ...le BPA</math>, <math>\angle APC</math> and <math>\angle BPC</math> must be obtuse, since they sum to <math>360^{\circ}</math>. Then, note the well known fact
  7 KB (1,169 words) - 14:04, 10 June 2022
• Right angle
  ** [[Obtuse angle]]
  673 bytes (91 words) - 23:59, 11 June 2022
• Acute triangle
  ...]. Any triangle which is not acute is either a [[right triangle]] or an [[obtuse triangle]]. ...so can be scalene. There are Acute [[triangle]],[[Right triangles]], and [[Obtuse triangles]].
  1 KB (194 words) - 13:09, 20 February 2024
• Obtuse triangle
  ...in which one [[angle]] is an [[obtuse angle]]. Any triangle which is not obtuse is either a [[right triangle]] or an [[acute triangle]]. ...e because the angles of a triangle must sum to <math>180^\circ</math>. Two obtuse angles would sum to more than that.
  1 KB (193 words) - 14:20, 12 June 2022
• Orthocenter
  ...on the vertex opposite the [[hypotenuse]]; and if it is [[obtuse triangle|obtuse]], then the orthocenter is outside the triangle.
  5 KB (829 words) - 13:11, 20 February 2024
• 1970 Canadian MO Problems
  Given a triangle <math>ABC</math> with angle <math>A</math> obtuse and with altitudes of length <math>h</math> and <math>k</math> as shown in
  4 KB (604 words) - 04:32, 8 October 2014
• Angle
  ...le but less than that of a straight angle, i.e. <math>\angle ABC</math> is obtuse if and only if <math>90^\circ<m\angle ABC<180^\circ</math>.
  3 KB (568 words) - 20:21, 21 June 2019
• Straight angle
  ** [[Obtuse angle]]
  568 bytes (78 words) - 13:50, 12 June 2022
• Obtuse angle
  An '''obtuse angle''' is an [[angle]] with a [[measure]] greater than 90 [[degree (geome Any triangle with an obtuse angle is considered an [[Obtuse Triangle]]
  508 bytes (62 words) - 17:21, 2 March 2014
• Euler line
  <i><b>Obtuse triangle</b></i> [[File:Euler line obtuse triangle.png|400px|right]]
  59 KB (10,203 words) - 04:47, 30 August 2023
• Mock AIME 4 2006-2007 Problems/Problem 15
  ...ake the positive sign because [[angle]] <math>B</math> is [[obtuse angle | obtuse]] so <math>\overline{MD}</math> is the longer of the two [[line segment | s
  3 KB (532 words) - 20:29, 31 August 2020
• 2002 USAMO Problems/Problem 2
  Sidenote: A 13, 40, 45 obtuse triangle has an integer area of 252 and an inradius of <math>\frac{36}{7}</
  2 KB (298 words) - 22:32, 6 April 2016

View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)