Mathematics, 22.06.2019 04:30, bigmouth804

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 p...

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