In a triangle ABC a+b=65°and b+c= 140 find the value of abc
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a+b+c = 180
65+c = 180
c = 115
a+b+c = 180
a = 180-140
a=40
a+b+c = 180
b = 25
then abc= 25X115X40
115000
65+c = 180
c = 115
a+b+c = 180
a = 180-140
a=40
a+b+c = 180
b = 25
then abc= 25X115X40
115000
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