Answer:
DAE = 120 degrees
Explanation:
Since AEF is an equal triangle we know each angle is equal to 60. Since D is a right angle due to being in a square, we know angle ADE + angle ADF 90.
ADF is 60 meaning ADE is 30. (ADF is 60 due to being an equilateral triangle meaning all angle measures are the same so 180/3 = 60.)
Since ADE is 30, we know AED is also 30. Meaning, 180- 60 = 120.
DAE = 120 degrees