Question

26. In figure, ∆ABC is right angled at B and <A = 450. If AC = 3√2cm, find
i) BC and ii) AB.​

Answer 1

Step-by-step explanation:

BC/AC = sin 45°

BC/3√2 =1/√2 Or BC = 3

By Pythagoras theorem (AB)2 = (AC)2 – (BC)2 = (3√2)2 – (3)2 = 18 – 9 = 9 AB = 3 cm.