The Total solution for NCERT class 6-12
∴Perpendicular BC – 2 units andHypotenuse AC = 3 unitsBy Phythagoras Theorem, in AABC,(Hypotenuse)2 = (Base)2 + (Perpendicular)2AC2 = AB2 + BC2⇒ (3)2 =(AB)2 + (2)2⇒ 9 = AB2 +4 ⇒ AB2 = 9-4= 5AB = √5 units