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Luba_88 [7]
3 years ago
11

Pls help me find the missing angle​

Mathematics
2 answers:
snow_lady [41]3 years ago
7 0

Answer:

b=114

c=43................

arlik [135]3 years ago
5 0

Answer:

b = 114, c = 53

Step-by-step explanation:

Sum of interior angles of a 4 sided quadrilateral is 360.

b + 128 + 57 + 61 = 360

b + 246 = 360

b = 360 - 246

b = 114

c + 127 + 103 + 87 = 360

c + 307 = 360

c = 360 - 307

c = 53

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