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OpenStudy (hang254):
Rebecca has a triangular piece of board. She cut it along a line parallel to the base of the triangle as shown below. What is the length of the line along which she cut the board? 5 inches 10 inches 6 inches 8 inches
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OpenStudy (hang254):
OpenStudy (cwrw238):
the inner and outer triangles are similar so corresponding sides are proportional
OpenStudy (cwrw238):
so 4 x -- = -- 10 20 solve for x
OpenStudy (hang254):
8
OpenStudy (cwrw238):
yea 8 is right
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OpenStudy (hang254):
thanks
OpenStudy (osuxbucks15):
yw
OpenStudy (cwrw238):
yw
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