Hint. Let the third angle be x'. Then, 2 x +2X +X = 100. 9. If one angle of a triangle is equal to the sum of the other two, show that the triangle is right-angled.

Hint. Let the third angle be x'. Then, 2 x +2X +X = 100. 9. If one ang

1.	Hint. Let the third angle be x'. Then, 2 x +2X +X = 100. 9. If one angle of a triangle is equal to the sum of the other two, show that the triangle is right-angled.
Answer» <html><body><p>-step <a href="https://interviewquestions.tuteehub.com/tag/explanation-455162" style="font-weight:bold;" target="_blank" title="Click to know more about EXPLANATION">EXPLANATION</a>:Angle A be <a href="https://interviewquestions.tuteehub.com/tag/aangle-1959040" style="font-weight:bold;" target="_blank" title="Click to know more about AANGLE">AANGLE</a> B be Bangle C be <a href="https://interviewquestions.tuteehub.com/tag/ca-375" style="font-weight:bold;" target="_blank" title="Click to know more about CA">CA</a> + B = CA + B + C = <a href="https://interviewquestions.tuteehub.com/tag/180c-279761" style="font-weight:bold;" target="_blank" title="Click to know more about 180C">180C</a> + C = 180 2C = 180C = 90THEREFORETRIANGLE IS RIGHT ANGLED</p></body></html>