10. 2 equilateral triangles are arranged as shown. Find Lb.169 – InterviewSolution

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10. 2 equilateral triangles are arranged as shown. Find Lb.169

Answer»

Given both triangles are equilateral then each angle of both triangles is 60

Sum of angles around point is 360As shown in fig.169 + 60 + 60 + b = 360289 + b = 360b = 360-289b = 71Angle b = 71 degree

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