An equilateral triangle with each side of length s is placed such that one of its sides is on the x axis of a coordinate system with the vertex opposite to this side on the y axis. Compute its interior angles in a frame that moves to the right of S (along the +ve x axis) with speed v. Is the sum of angles still 180º (take v = c/2 for example and confirm)?
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![An equilateral triangle with each side of length s is placed such that one of its sides is on the x axis of a coordinate system with the vertex
opposite to this side on the y axis. Compute its interior angles in a frame that moves to the right of S (along the +ve x axis) with speed v. Is the
sum of angles still 180° (take v =
c/2 for example and confirm)?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F46dfc12c-625f-4ae4-848a-203511636616%2Fa58604cf-225d-4b6e-8029-f2a2dea59667%2Ftc301mu_processed.png&w=3840&q=75)
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