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Please help!!! explain why a + b = d​
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2 votes
Please help!!!

explain why a + b = d​

Please help!!! explain why a + b = d​-example-1
User DjOnce
by
3.2k points

1 Answer

1 vote
a + b + c = 180 ( sum of angles in a triangle )
c + d = 180 ( adjacent angles are
supplementary ), thus
a +b+c=c+ dsubtract c from both sides )
a+b=d
User Bernard Allotey
by
3.5k points
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