Example SS
- 11XE
87 C
As and CD meet at point E. What is LAEC?
LAED and 2DES are supplementary angles
17
+0-32) - 180
3x + 15 = 180
3x = 165
x=55
LDES and ZAEC are vertical angles
LAEC = m_DES
= x+321
= (55 + 32)
=870
Som_AEC = 87
Look at the figure in the Example.
2. What is m_CEB? Show your work
SOLUTION
Describe how to find m_CEB another way.

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