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Mathematics 9 Online
OpenStudy (mlgpro):

Which set of angles shows an acute triangle? seventy-four degrees, ninety degrees, sixteen degrees fifty-one degrees, twenty-six degrees, one hundred three degrees ninety-one degrees, sixty-two degrees, twenty-seven degrees forty-five degrees, eighty-two degrees, fifty-three degrees

OpenStudy (anonymous):

forty-five degrees, eighty-two degrees, fifty-three degrees bc all sides are less than 90 degrees

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