if angle a=−16π9 in radians, what is the degree measure of a? do not include the degree symbol in your answer.

In December 1970, environmentalists achieved a major goal with the establishment of the U.S. Environmental Protection Agency (EPA) through an executive order signed by then-president Richard Nixon. The creation of the EPA brought together several federal programs charged with protecting the environment into a single government agency. The EPA was founded with the goal of protecting human health and the environment by enforcing regulations passed by Congress. so this is the answer

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