Answer :

linandrew41

To determine which angles are adjacent to ∠DEA:

 ⇒ let's define adjacent angles

    ⇒ Adjacent angles are angles that share a common side, and a

        common endpoint, but do not overlap

Based on the definitions

  ⇒ ↓∠DEC and ∠AEB are adjacent angles to ∠DEA

Answer: ∠DEC or ∠AEB

Hope that helps!

sqdancefan

Answer:

  ∠DEC or ∠AEB

Step-by-step explanation:

An adjacent angle is one that shares a side and a vertex, but no interior space.

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Angle DEA has its vertex at point E, and has sides ED and EA.

Another angle with side ED and vertex E is angle DEC.

Another angle with side EA and vertex E is angle AEB.

Angles adjacent to angle DEA are DEC and AEB.

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