Problem $4.[10$ pts$]$ M$34-89.$ If M$1=180$ lb$-$ft$,$ M$2=90$ lb$-$ft$,$ and M$3=120$ lb$-$ft$,$ determine the magnitude and coordinate direction angles of the resultant couple moment. $1$ ft $2$ ft $14545\backslash$deg $2$ ft x $2$ ft M$2$ M$1150$ lb$-$ft y $3$ ft