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Mathematics 20 Online
OpenStudy (anonymous):

i need help with a two column proof

OpenStudy (anonymous):

OpenStudy (anonymous):

@ganeshie8

ganeshie8 (ganeshie8):

start wid whats given

ganeshie8 (ganeshie8):

1) m<EGF = 60 1) Given 2) m<AGF = 90 2) Given

OpenStudy (anonymous):

alright

ganeshie8 (ganeshie8):

1) m<EGF = 60 1) Given 2) m<AGF = 90 2) Given 3) m<BGC = m<EGF 3) Vertical angles are congruent 4) m<BGC = 60 4) By transitive property of equality 5) m<AGF + m<AGC = 180 5) linear pair angles are complementary 6) 90 + m<AGC = 180 6) By substitution 7) m<AGC = 90 7) By subtraction property of equality 8) m<AGB + m<BGC = m<AGC 8) By angle addition postulate 9) m<AGB + 60 = 90 9) By substitution 10) m<AGB = 30 10) By subtraction property of equality

ganeshie8 (ganeshie8):

see if that makes some sense

OpenStudy (anonymous):

that makes a lot more since, thanks for the help again @ganeshie8

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