Question

triangle ∆ABC is an isosceles triangle with, angle A = 90° show that BCsq = 2AB ​

Answer 1

Answer:

since in triangle abc, ab=ac

Step-by-step explanation:

since La=90

according to pythagoras theorem,

ab^2+bc^2=ac^2

2bc^2=ac^2

2bc^2=2ab^2

thus bc^2=2ab