Question
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Convert the given angle to DMS (degree-minute-second) form. Round to the nearest second if necessary.

Ask by Fleming May. in the United States
Mar 23,2025

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Answer

To convert an angle from decimal degrees to degrees, minutes, and seconds (DMS), follow these steps:
  1. Degrees (D): Take the integer part of the decimal degrees.
  2. Minutes (M): Multiply the fractional part by 60 to get minutes. Take the integer part of this result.
  3. Seconds (S): Multiply the remaining fractional part by 60 to get seconds. Round to the nearest whole number if necessary.
Example:
For :
  • Degrees: 123
  • Minutes: → 27 minutes
  • Seconds: → 24 seconds
So, .

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The Deep Dive

To convert an angle to degree-minute-second (DMS) form, first, take the whole number part as degrees. For the decimal part, multiply it by 60 to get minutes, then take the whole number part of that as minutes. The remaining decimal is again multiplied by 60 to get seconds. Don’t forget to round to the nearest second if it’s necessary!
Let’s say you had an angle of 45.75 degrees. The DMS conversion would look like this:
  • Degrees: 45
  • Minutes: 0.75 * 60 = 45 (so, 45 minutes)
  • Seconds: Since there are no decimals left, it rounds to 0 seconds.
So, 45.75 degrees is equivalent to 45° 45’ 0".
A little hint - using a calculator can significantly ease the process, especially when handling larger decimal fractions. Just remember to keep an eye on rounding!

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