Mathematics, 06.06.2020 06:59, zuberskylar
Points A, B, and form a triangle. Complete the statements to prove that the sum of the interior angles of AABC is 180°.
Reason
Statement
Points A, B, and C form a triangle.
Let DE be a line passing through Band parallel to AC
23 25 and 21 24
given
definition of parallel lines
v
m_1 = m 24 and m 3 = m25
v
m24+ m22 + m25 = 180°
angle addition and definition of a straight line
substitution
m21 + m22 + m23 = 180°
All
Answers: 1
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Points A, B, and form a triangle. Complete the statements to prove that the sum of the interior angl...
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