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simple buddy
see angle ECB+angle ACB =180(linear pair)
102+Acb=180
=ACB=180-102
=78
angle DEC=BCA(corresponding angles)
So dec is 78
dec+ead+ade=180(triangle some is 180
so 113+eda=180
eda=180-113=67
see angle ECB+angle ACB =180(linear pair)
102+Acb=180
=ACB=180-102
=78
angle DEC=BCA(corresponding angles)
So dec is 78
dec+ead+ade=180(triangle some is 180
so 113+eda=180
eda=180-113=67
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