Answers

2015-12-13T22:49:17+05:30
 opposite sides and angles in a || are equal.
sum of adjcent sides is equal to 180
 the bisectors of these angles form a triangle. whose two angles are A/2 and B/2 (As it is been bisected), or A/2 and (180 - A)/2 = (90 - A/2)
and
 A + B + C = 180 

for the above case,
we have A/2 + 90 - A/2 + C = 180. 

C=180 - 90 
C = 90 
Hence, the two bisectors intersect at right angles.
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