Given ΔSTU and ΔDEF, what is m∠E? There are two triangles STU and DEF. The angle TSU is 29 degree. The length of side ST is 15, the length of side SU is 20, and length of side TU is 10. The angle EFD is 46 degree. The length of side ED is 6, the length of side EF is 4, and length of side FD is 8.

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.