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OverpoweredNoob

Answer:

107 degrees

Step-by-step explanation:

First, subract 180 from 135 to get the angle for DFE, which is 45 degrees.

Then, add 45 to 28, which equals to 73 degrees.

Finally, subtract 180 from 73 to get the angle for DEF, which is 107 degrees.

Answer:

107

Step-by-step explanation: