in the given figure if angle 1+ angle 2= angle 3 + angle 4 prove that ab is a straight line
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Since complete angle = 360
ang1 + ang2 + ang3 + ang4 = 360
|_________| |_________|
ang1 + ang2 + ang1 + ang2 = 360 (given)
2( ang1 + ang2) = 360
ang1 + ang2 = 360/2 =180
Therefore ab is a straight line since the angle = 180 which is linear angle
ang1 + ang2 + ang3 + ang4 = 360
|_________| |_________|
ang1 + ang2 + ang1 + ang2 = 360 (given)
2( ang1 + ang2) = 360
ang1 + ang2 = 360/2 =180
Therefore ab is a straight line since the angle = 180 which is linear angle
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