Answer:
The answer is "sometimes"
Step-by-step explanation:

1)
<h2>

</h2>
=> 72.0
2)
<h2>

</h2>
=> 616.0
If we add the two numbers we get....
=> 72.0 + 616.0
=> 688.0
<em><u>Ans.</u></em>

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Answer: m∠BCE = 63°
m∠BAD = 76°
Step-by-step explanation:
Problem 1:
Given
m∠BEC = 90°
m∠EBC = 27°
Total = 117°
Solution:
Subtract 180° - 117° = m∠BCE = 63°
Problem 2:
Given
m∠ADE = 52°
m∠ABE = 52°
Total = 104°
Solution:
Subtract 180° - 104° = m∠BAD = 76°