March 27th, 2018, 04:27 AM  #1 
Banned Camp Joined: Dec 2017 From: Tel Aviv Posts: 87 Thanks: 3  Maximum Chord Angle
1. What is the maximum chord angle in the circle? 2. What is the maximum chord angle that one of its side is diameter? 
March 27th, 2018, 06:07 AM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,279 Thanks: 1023 
Do you realise that most of your "questions" can be answered by using google? 
March 27th, 2018, 06:20 AM  #3 
Banned Camp Joined: Dec 2017 From: Tel Aviv Posts: 87 Thanks: 3 
But MY English is bad. And the link you gave me don't answer my other question. I ask my question: Why the rhombus his vertix can't be on a circle, and you not give me a answer... 
March 27th, 2018, 07:21 AM  #4  
Math Team Joined: Jan 2015 From: Alabama Posts: 3,264 Thanks: 902 
Okay, do you know what a "chord" is? Do you know what a "chord angle" is? A "chord" in a circle is a line segment that that has its endpoints on the circle. Drawing lines from the center of a circle to the end points of the chord defines two angles, one less than or equal to 180 degrees the other larger. The "chord angle" is the smaller of those angles. The real question is whether a diameter of a circle counts as a chord. Both Wikipedi (https://en.wikipedia.org/wiki/Chord_(geometry)) and Mathisfun.com (https://www.mathsisfun.com/definitions/chord.html) say it is. And a diameter divides a circle into two equal parts, each with "chord angle" 360/2= 180 degrees. Quote:
Last edited by Country Boy; March 27th, 2018 at 07:33 AM.  
March 27th, 2018, 08:02 AM  #5 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,279 Thanks: 1023  

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angle, chord, maximum 
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