terior angle theorem Cheorem: If two parallel lines are intersected by a transversal, the interior angles on either side of the transversal are supplementary. Given : line 1 || line m and line n is their trans- vérsal. Hence as shown in the figure Za, Zb are interior angles formed on one side and Ze, Zd are interior angles formed on other side of the transversal. dla с / prove : Za + Zb = 180° Zd + Zc = 180° Fig. 2.2 roof : Three possibilities arise regarding the sum of measures of Za and Zb. (i) Za + Zb< 180° (ii) Za+ Zb> 180° (iii) Za+ Zb = 180° Let us assume that the possibility (i) Za + Zb< 180° is true. Then according to Euclid's postulate, if the line l and line m are produced will intersect each other on the side of the transversal where Za and Zb are formed.
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Answer:
za+zb+zab
Step-by-step explanation:
zz+yy+x=zyx
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