A plus B minus C equals to
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hey mate
PQ||RS
so drawn a line AB ||PQ intrsect O point
angle b divided two parts
a+b/2 = 180°
c=b/2
because parallel line AB||PQ
so b=2c
given a+b-c
= a+b/2+b/2 -c
put value a+b/2 in eq. and b/2
so, 180° +c-c
=180°
Answer=180°
hope it's helpful you
PQ||RS
so drawn a line AB ||PQ intrsect O point
angle b divided two parts
a+b/2 = 180°
c=b/2
because parallel line AB||PQ
so b=2c
given a+b-c
= a+b/2+b/2 -c
put value a+b/2 in eq. and b/2
so, 180° +c-c
=180°
Answer=180°
hope it's helpful you
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