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anonymous
 5 years ago
what is the value of y, if 3y, 4y,and 5y are the exterior angles of a triangle?
anonymous
 5 years ago
what is the value of y, if 3y, 4y,and 5y are the exterior angles of a triangle?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0What is always the sum of the exterior angles of a triangle?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0an exterior angle is equal to sum of two interior angles

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes, but what is the sum of ALL 3 exterior angles? It always equals a specific number. Maybe draw a few triangles to convince yourself of this? Once you discover this fact, the rest of the problem is easy.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Exterior angle always add to 360

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.03y + 4y + 5y = 360 12y = 360 y = 360 / 12 y = 30
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