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Zinaida [17]
3 years ago
12

5. Find the mZABC if ZABD = 35°, ZDBC = 55º.

Mathematics
1 answer:
Reika [66]3 years ago
5 0

Answer:

m\angle ABC=90^o

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

m\angle ABC=m\angle ABD+m\angle DBC ----> by angle addition postulate

substitute the given values

m\angle ABC=35^o+55^o=90^o

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