Find the value of Share with your friends Share 1 Aarushi Mishra answered this Sum of interior ngles of triangle is 180°∠A+∠B+∠C=180°45°+45°+x=180°90°+x=180°x=180°-90°x=90° 1 View Full Answer Ridheema answered this 45+45+x=180 By angle sum property 90+x=180 x = 180-90 x = 90 1