Question

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Answer 1

$1.\:\:\:120(\frac{\pi }{180})rad=\frac{2\pi }{3} rad\\\\2.\:\:\:8\pi rad(\frac{180}{\pi rad} )= 1440\:grados\:sexagesimales\\\\3.\:\:\:\frac{\pi }{4} rad(\frac{180}{\pi } )=45\:grados\:sexagesimales$