Math, asked by UGirl, 1 year ago

please help (with reasons and proper steps so I can understand. Chapter is Lines and Angles)

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Answered by ummeos123

1

In ∆ABC

A+B+C=180(angle sum property of triangle) (1)

In∆FDE

F+E+D=180(angle sum property of triangle) (2)

Adding (1&2)

A+B+C+D+E+F=180+180=360

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