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77julia77 [94]
3 years ago
10

Find measure dbc 19 22 23 161 HELP !!!

Mathematics
1 answer:
iren2701 [21]3 years ago
4 0
Angles ABD and DBC are supplementary.  They are also a linear pair because they share a ray.  Supplementary angles add up to equal 180, as do linear pairs. Therefore, from our picture, 7x + x - 4 = 180.  8x = 184.  Therefore, x = 157.  157-4 = ∠DBC, so ∠DBC = 153.
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