Anyone, please help. I’m a dimwit at math!

Mathematics

1 answer:

diamong [38]3 years ago

8 0

Angle measurement DEF=107 degrees
You must first find angle F- since it is against a flat line, we know 180=F+135. Subtract 135 from each side and we find F is 45 degrees.
Then, since a triangle’s angles must always equal 180 degrees, we subtract angles D and F from 180 to get 107 degrees.

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