Express radians correct to the nearest second in degrees

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Express 7.3457.345 radians correct to the nearest second in degrees, minutes and seconds. (a) 440∘  42′  00′′440^\circ\;42'\;00'' (b) 420∘  50′  15′′420^\circ\;50'\;15'' (c) 210∘  26′  02′′210^\circ\;26'\;02'' (d) 420∘  30′  15′′420^\circ\;30'\;15''

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