madisonmuir12 madisonmuir12

21-02-2018
Mathematics

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Can someone explain this and help me write it and write the list of steps

Can someone explain this and help me write it and write the list of steps class=

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Аноним Аноним

21-02-2018

113 = 72 + m < B ( by the external angle of a triangle theorem)

Subtract 72 from both sides:-

113 - 72 = 72 - 72 + m < b

m<b = 41 degrees

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