   # Four congruent equilateral triangles are placed in a row. ................... within the triangles, as shaded in yellow?

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Four congruent equilateral triangles are placed in a row.
A line connects the bottom left vertex of the first triangle to the top vertex of the last triangle.
If each equilateral triangle has an area equal to 6, what is the area above the line contained within the triangles, as shaded in yellow?  posted Jan 11
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