The quadrilateral abcd is a rhombus with diagonals ac =12 ft and bd = 4 ft. the points m and n divide diagonal ac on three equal parts. prove that bmdn is a square and find its area.

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.