Mathematics, 18.02.2020 04:20, ehaynie

Points A, B, and C form a triangle. Complete the statements to prove that the sum of the interior angles of AABC is 180°.
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Statement
Reason
Points A, B, and form a triangle.
given
Let DE be a line passing through Band parallel to AC. definition of parallel lines
232 25 and 21 224
m_1 = m_4 and m23 = m_5
124 + m22 + m25 = 180°
angle addition and definition of a straight line
m_1 + m_2 + m23 = 180°
substitution
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Answers: 3

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Points A, B, and C form a triangle. Complete the statements to prove that the sum of the interior an...