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Mathematics 71 Online
OpenStudy (mcsuds):

Given triangle \(ABC\), let \(A’\) be the point 1/3 of the way from \(B\) to \(C\), as shown. Similarly, \(B’\) is the point 1/3 of the way from \(C\) to \(A\), and \(C’\) is the point 1/3 of the way from \(A\) to \(B\). In this way, we have constructed a new triangle starting with an arbitrary triangle. Now apply the same procedure to triangle \(A’B’C’\), thereby creating triangle \(A’’B’’C’’\). Show that the sides of triangle \(A’’B’’C’’\) are parallel to the (appropriate) sides of triangle \(ABC\). What fraction of the area of triangle \(ABC\) is the area of triangle \(A’’B’’C’’\)?

OpenStudy (mcsuds):

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