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Katarina [22]
3 years ago
11

Helppppppppppppppppppppppppppppp

Mathematics
2 answers:
nataly862011 [7]3 years ago
5 0

4*((7x-6)+(4x-3))=360

7x-6+4x-3=90

11x=99

x=9

∠ACD = (7x-6)=7*9-6 = 57°

Dmitriy789 [7]3 years ago
3 0
BD is the angle bisector of ∠ADC
Therefore ∠ADC=(8x-6)°

Same for ∠DCB, AC bisects ∠DCB
Therefore ∠DCB=(14x-12)°

Because AD//BC, ∠DCB+∠ADC=180°
i.e. 22x-18=180
x=9
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