Answer:
x=34°
Step-by-step explanation:
Let's find m∠DFE.
We can see that ∠F+90+42=180°.
We can find angle F like this:
F+132=180
F=180-132
∠F=48°
So, now we have all the angles inside the triangle. We can make an equation that looks like this:
2x+64+48=180
2x+112=180
2x=180-112
2x=68
x=34°
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