Mathematics, 26.06.2019 08:00 lefarrioe8621
An angle bisector ac divides a trapezoid abcd into two similar triangles △abc and △acd. find the perimeter of this trapezoid if the leg ab=9 cm and the leg cd=12 cm.
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An angle bisector ac divides a trapezoid abcd into two similar triangles △abc and △acd. find the per...
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