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• Hexagon
  ...ternal [[angle]] of a [[Regular polygon | regular]] hexagon measures 120 [[degree (geometry) | degrees]], so the sum of the angles is <math>720^{\circ}</math
  688 bytes (94 words) - 21:00, 14 December 2018
• Straight angle
  ...ting in opposite directions. The measure of every straight angle is 180 [[degree (geometry) | degrees]] or <math>\pi</math> [[radian]]s. * [[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 (geometry) | degrees]] (<math>\frac\pi2</math> [[radian]]s) but less than 1 Any triangle with an obtuse angle is considered an [[Obtuse Triangle]]
  508 bytes (62 words) - 17:21, 2 March 2014
• Acute angle
  ...ngle''' is an [[angle]] with [[measure]] greater than 0 but less than 90 [[degree (geometry) | degrees]] (<math>\frac\pi2</math> [[radian]]s). Examples:http://www.google.com/search?q=acute+angle&hl=en&client=safari&rls=en&prmd=imvns&tbm=isch&tbo=u&source=univ&sa=X&ei=vp
  377 bytes (59 words) - 17:16, 2 March 2014
• Measure
  ...'measure''' can mean the amount of [[degree (geometry) | degree]]s in an [[angle]], the [[length]] of a [[line segment]], or a [[function]] that assigns a [ ...h>\angle ABC\cong\angle DEF</math>, then <math>\mbox{m}\angle ABC=\mbox{m}\angle DEF</math>.
  1 KB (194 words) - 10:45, 11 July 2007
• Degree (geometry)
  The '''degree''' of an [[angle]] is a [[measure]]ment of the angle, representing <math>\frac1{360}</math> of a full [[rotation]]. Degrees are indicated by the degree symbol; one degree would be written <math>1^{\circ}</math>.
  785 bytes (117 words) - 10:37, 6 November 2007
• Point
  ...angle]] can be denoted by either one or three points. If there is only one angle with this point as its [[vertex]], only one point is needed; if there are m ...y either two or three points. If the arc has a [[measure]] less than 180 [[degree]]s, only two points are needed; if the arc has a measure equal to or greate
  3 KB (461 words) - 18:59, 22 April 2008
• Mock AIME 6 Pre 2005/Problems
  <math>13</math>. In <math>\triangle ABC</math>, <math>\angle A=30^{\circ}</math>, <math>AC=28\sqrt{3}</math>, and <math>\displaystyle AB <math>14</math>. Let <math>\displaystyle f</math> be a polynomial of degree <math>\displaystyle 2005</math> with leading coefficient <math>\displaystyl
  7 KB (1,110 words) - 05:15, 31 December 2006
• 2007 AIME II Problems/Problem 11
  ...r circle (twice), while the <math>180 - 2(30) = 120^{\circ}</math> central angle in the smaller circle indicates to take <math>\frac{120}{360} = \frac 13</m
  2 KB (407 words) - 16:31, 29 February 2020
• 2007 AMC 12A Problems
  ...angle <math>ADC</math> measures 140 degrees. What is the degree measure of angle <math>BAD</math>? ...10 to 3, and so on, ending back at 12. What is the degree measure of the [[angle]] at each [[vertex]] in the star polygon?
  11 KB (1,750 words) - 13:35, 15 April 2022
• 2007 AMC 12B Problems/Problem 3
  ...e AOB = 140^{\circ}</math>, as shown. What is the degree measure of <math>\angle ABC</math>? ...\angle ABO=20^o</math> and <math>\angle OBC=30^o</math>. Therefore, <math>\angle ABC=50^o</math>, or <math>\mathrm{(D)}</math>.
  905 bytes (130 words) - 10:39, 27 February 2022
• 2007 AMC 12B Problems/Problem 7
  ...gle A = \angle B = 90^{\circ}</math>. What is the degree measure of <math>\angle E</math>? ...also 5, triangle <math>CDE</math> is [[equilateral triangle|equilateral]]. Angle <math>E</math> is therefore <math>90+60=150 \Rightarrow \mathrm {(E)}</math
  860 bytes (126 words) - 18:31, 17 June 2023
• Central angle
  ...entral angle subtends is by definition equal to the measure of the central angle, and is known as the [[arc segment]]'s [[angular distance]]. * [[Degree]]
  569 bytes (88 words) - 20:50, 24 April 2008
• Octagon
  ...ternal [[angle]] of a [[Regular polygon | regular]] octagon measures 135 [[degree (geometry) | degrees]], so the sum of the angles is <math>1080^{\circ}</mat
  489 bytes (60 words) - 20:40, 14 October 2007
• 2007 AMC 12A Problems/Problem 6
  ...angle <math>ADC</math> measures 140 degrees. What is the degree measure of angle <math>BAD</math>? We angle chase and find out that:
  2 KB (265 words) - 00:20, 30 October 2022
• 2007 AMC 12A Problems/Problem 8
  ...10 to 3, and so on, ending back at 12. What is the degree measure of the [[angle]] at each [[vertex]] in the star polygon? ...of the [[right angle]]). Thus, the angle at each vertex is an [[inscribed angle]] subtending <math>60</math> degrees, making the answer <math>\frac 1260 =
  997 bytes (152 words) - 03:00, 20 July 2016
• 2005 AMC 12A Problems/Problem 15
  ...ered pair for <math>D (x,y)</math>, and notice how <math>E</math> is a 180 degree rotation of <math>D</math>, using the rotation matrix formula we get <math> ...sion of <math>DC</math> hits the circle <math>F</math>. Notice that <math>\angle DCB = 90^\circ</math>. This implies that <math>DC=CF</math>. WOLG, let <mat
  14 KB (1,970 words) - 17:02, 18 August 2023
• 2006 AIME II Problems/Problem 1
  ...[right angle]]s, and <math>\angle B, \angle C, \angle E,</math> and <math>\angle F</math> are [[congruent]]. The area of the hexagonal region is <math>2116( Because <math>\angle
  2 KB (336 words) - 03:19, 12 January 2024
• 2007 AMC 12B Problems
  ...e AOB = 140^{\circ}</math>, as shown. What is the degree measure of <math>\angle ABC</math>? ...gle A = \angle B = 90^{\circ}</math>. What is the degree measure of <math>\angle E</math>?
  12 KB (1,814 words) - 12:58, 19 February 2020
• 2002 AMC 12A Problems/Problem 4
  Find the degree measure of an angle whose complement is 25% of its supplement. ...e <math>90^{\circ}</math> as <math>\frac{3}{4}</math> of the supplementary angle.
  1,019 bytes (140 words) - 19:14, 20 August 2019

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