If a quadrilateral has four congruent sides and four right angles, then it's a square, and also If two consecutive sides of a rectangle are congruent, then it's a square.
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6/x-3=3/x
3x-9=6x
3x=-9
x=-3
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the center of gravity of all triangles is at the intersection of the three midlines.
2) The area of the three boy gogle fermed by the line from the center of gravity of the triangle to each verten is equal, which is 1/3 of the area of the origiend briangle. 6o we can see that selecting option. 60 C is shown in figura.
the answer is c
