Mathematics, 18.01.2020 05:31 hailenardos5
Diagonal ac divides the trapezoid abcd (with bases ad and bc, ad> bc) into two similar triangles, △abc and △dca. find ac if bc=4 cm and ad=9 cm.
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Diagonal ac divides the trapezoid abcd (with bases ad and bc, ad> bc) into two similar triangles,...
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