Question

in∆ Abc, ab=6/3 cm , ac=12 cm and bc=6 cm them\a=?​

Answer 1

Answer:

Answer is (C) 90º Here largest side is 12 cm. If square of the hypotenuse is equal to square of other two sides, then it is a right angled triangle. ∴ c2 = a2 + b2 AC2 = AB2 + BC2 (12)2 = (63)2 + (6)2 44 = 36 × 3 + 36 144 = 108 + 36 144 = 144 ∴ ∆ABC is a right angled triangle and angle opposite to hypotenuse, ∠B = 90°.Read more on Sarthaks.com - https://www.sarthaks.com/658113/in-abc-ab-63cm-ac-12-cm-and-bc-6-cm-the-angle-b-is?show=658122#a658122