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Convert 19.2° into degrees and minutes.

Answer and explanation

Correct answer: 19° 12′

The governing conversion is 1 degree = 60 minutes. Separate the whole-degree part from the fractional part: 19.2° = 19° + 0.2°. Only the fractional degree must be converted into minutes. Multiply it by 60: 0.2 × 60′ = 12′. Therefore, 19.2° = 19° 12′, so option C is correct. Option A incorrectly changes 0.2 into 2 minutes, and option B treats the decimal as if it represented 20 minutes without performing the conversion. Option D incorrectly changes the whole-degree part from 19° to 20°. A reverse check confirms the result because 12′ = 12/60° = 0.2°, and 19° + 0.2° returns 19.2° exactly.

Related tags

Trigonometric-FunctionsAnglesDegrees-And-MinutesMathematicsTrigonometric FunctionsClass 12 Mcq

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