Guest kenshi64 Posted July 27, 2011 Report Share Posted July 27, 2011 (edited) When I say static I mean the same part of the triangle? since the triangles are upside down and tilted and oriented in a number of different ways, its tought to remember which side was A or B or C if the proportions have changed, so do we strcily identify a certain side as an alphabet? In this Image you can see what's marked as A,B,C what if I were to change those, when I was given a textual sum and I didn't know how it looked, would I be wrong ? or is safe to use the formula anyhow, unlike Pythagoras where subtraction can occur too. Thanks for your patience, it has been a confusing doubt right? Edited July 27, 2011 by Keel Error in image URL Reply Link to post Share on other sites More sharing options...
Keel Posted July 27, 2011 Report Share Posted July 27, 2011 When I say static I mean the same part of the triangle? since the triangles are upside down and tilted and oriented in a number of different ways, its tought to remember which side was A or B or C if the proportions have changed, so do we strcily identify a certain side as an alphabet? In this Image you can see what's marked as A,B,C what if I were to change those, when I was given a textual sum and I didn't know how it looked, would I be wrong ? or is safe to use the formula anyhow, unlike Pythagoras where subtraction can occur too. Thanks for your patience, it has been a confusing doubt right? I don't think the letters matter; they can be rearranged without causing any error. c2=a2 + b2 - 2.a.b.cos C If you wanted to find out what a2 was you could treat cos A as cos C and you would get the correct answer. Thus you dont really need to know what the triangle looks like to use the rule. Just remember that each small letter is the side opposite to the angle capital letter. 1 Reply Link to post Share on other sites More sharing options...
Guest kenshi64 Posted July 27, 2011 Report Share Posted July 27, 2011 When I say static I mean the same part of the triangle? since the triangles are upside down and tilted and oriented in a number of different ways, its tought to remember which side was A or B or C if the proportions have changed, so do we strcily identify a certain side as an alphabet? In this Image you can see what's marked as A,B,C what if I were to change those, when I was given a textual sum and I didn't know how it looked, would I be wrong ? or is safe to use the formula anyhow, unlike Pythagoras where subtraction can occur too. Thanks for your patience, it has been a confusing doubt right? I don't think the letters matter; they can be rearranged without causing any error. c2=a2 + b2 - 2.a.b.cos C If you wanted to find out what a2 was you could treat cos A as cos C and you would get the correct answer. Thus you dont really need to know what the triangle looks like to use the rule. Just remember that each small letter is the side opposite to the angle capital letter. Dankeschön et Merci Beaucoup that solves it. Reply Link to post Share on other sites More sharing options...
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