а) AB=c, AC=c*cos(a), CB= c* sin(a)
AC*BC=CD*c
CD=c* sin(a)*cos(a)
б) CD=m, AC=m/sin(a), BC=m/cos(a)
AB=m/(sin(a)* cos(a))
а) AB=c, AC=c*cos(a), CB= c* sin(a)
AC*BC=CD*c
CD=c* sin(a)*cos(a)
б) CD=m, AC=m/sin(a), BC=m/cos(a)
AB=m/(sin(a)* cos(a))