3 years ago

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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Check the picture below.

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