एक Δ ABC में ∠A का अर्द्धक AD है यदि AB= 9 सेमी, AC = 12 सेमी, BD = (7 - x) सेमी तथा DC = x सेमी हो तो x = ? - - Ek Δ ABC Me ∠A Ka अर्द्धक AD Hai Yadi AB= 9 CM , AC = 12 CM , BD = (7 - x) CM Tatha DC = x CM Ho To x = ? Maths in hindi, triangles 4.8 question answers in hindi pdf 3.5 questions in hindi, Know About 4 Maths online test Maths notes in hindi quiz book 2.5