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4. In the diagram, DE is parallel to AB. Vertex C of AABC lies on DE.
D
C
5
2
A
3
E
B
A
Noor says that mz1 + m22 + m23 = 180°. Which angle relationships explain why Noor must
be correct? Choose all that apply.
A. m24+ m22 + m25= 180°
B. mz1+ m24 = 180°
C. m23+ m25= 180°
D. mz1 = mz4
E. m23 m25
