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TheViper
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Any question ??
decripter37
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x=40, done
Kystal
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drawing my diagram~ wait~ sorry~
TheViper
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:)
decripter37
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XD don't worry
TheViper
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good drawing xD
Kystal
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zzr0ck3r
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you drew that?
Kystal
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yeap ~
sauravshakya
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|dw:1346932456806:dw|
sauravshakya
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Now, use Sum of all angles of a triangle = 180
punnus
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The two adjacent line are a tangent tot eh circle and also thery along with the lines forming the 70 angle form a quadrilateral. The sum of angles in a quadrilateral is 360 and angle formed by tangent is 90. Now I guess you can solve
Kystal
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@sauravshakya thanks :))
sauravshakya
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Welcomx
sauravshakya
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@punnus the angle u are saying is not 90 because the lines are not radius or diameter
punnus
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I know that. I wants trying to give hints to solve the question and not the solution.
punnus
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Were @sauravshakya were you able to tell her why the rest of the angles of the triangle are 70.
sauravshakya
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Angle between a tangent and a chord at the point of contact is equal to the opposite angle formed by the chord at the circumference
Kystal
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@punnus it's one of the rules in a circle i know~but thanks anyway~ :)
sauravshakya
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Ya.. its a theorem
punnus
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@sauravshakya Do you know how that your theorem has come about...
punnus
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It is a derived theorem...
punnus
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derived using other theorems.
sauravshakya
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Actually its not my theorem.. BUT IF u are asking for a proof then U can search it on google
punnus
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I know the proof of this so called theorem...
punnus
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My point is that when ever you solve a question solve it frm the basic theorems that are present and not the derived ones
punnus
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@sauravshakya If you want i can prove it for you right now...
sauravshakya
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I also know the proof..... But if u r willing to prove it then OK PLZ TAKE YOUR PRECIOUS TIME AND PROVE IT
sauravshakya
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To know how to use the theorem is better then to know the proof of it