Asked by bbb

measure of negative angle coterminal -240 degrees

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Answered by GPT-5 mini AI
A positive angle coterminal with −240° is −240° + 360° = 120°.

In general coterminal angles are −240° + 360°k for any integer k. In radians: −240° = −4π/3, and a coterminal positive measure is 2π/3.