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swat32
2 years ago
8

HElppppppppppppppppppppppppppppppppp

Mathematics
2 answers:
vaieri [72.5K]2 years ago
6 0

Answer:

x=16 degrees

Step-by-step explanation:

serious [3.7K]2 years ago
3 0

Answer:

16

Step-by-step explanation:

85 - 21 = 64

64/4 = 16

this is assuming they are same length

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If point D is the interior of angle ABC, then the angle addition postulate theory states that the sum of angle ABD and angle DBC is equals to angle ABC. The angle addition postulate is used to measure the resulting angle from two angles placed side by side.

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