\(ABC\) is a right-angled triangle. \(D\) is a point on \(AB\).Angle \(ACD\) = 30° \(AD\)= 10.4 cm \

\(ABC\) is a right-angled triangle. \(D\) is a point on \(AB\).Angle \(ACD\) = 30° \(AD\)= 10.4 cm \ - চর্চা