Question

IF one angle of a triangle is equal to the sum of the other two, show that the triangle is right angled?​

Answer 1

Answer:

let 1st angle be a

2nd be b

3rd be c

a=b+c ( given)........(1)

using angle sum property

a+b+c= 180

a+a=180 ( from eq 1)

2a=180

a=90

if one angle of a triangle is 90 so the triangle is right angled triangle

Answer 2

Answer:

please see the attachment for ur ans