Convert 30°10'20" into decimal degrees to three decimals.

Maximize your readiness for the CDC 3E551 Engineering Journeyman Exam. Use flashcards and multiple choice questions, complete with hints and explanations. Start your journey to success today!

Multiple Choice

Convert 30°10'20" into decimal degrees to three decimals.

Converting from degrees, minutes, and seconds to decimal degrees means turning the minutes and seconds into a fraction of a degree and adding them to the whole degrees. Compute the extra parts: 10 minutes is 10/60 = 0.1666667 degrees, and 20 seconds is 20/3600 = 0.0055556 degrees. Add these: 0.1666667 + 0.0055556 = 0.1722222 degrees. Add to the 30 degrees: 30 + 0.1722222 = 30.1722222 degrees. Rounding to three decimals gives 30.172°. So the decimal degrees value to three decimals is 30.172°.

Converting from degrees, minutes, and seconds to decimal degrees means turning the minutes and seconds into a fraction of a degree and adding them to the whole degrees.

Compute the extra parts: 10 minutes is 10/60 = 0.1666667 degrees, and 20 seconds is 20/3600 = 0.0055556 degrees. Add these: 0.1666667 + 0.0055556 = 0.1722222 degrees.

Add to the 30 degrees: 30 + 0.1722222 = 30.1722222 degrees. Rounding to three decimals gives 30.172°.

So the decimal degrees value to three decimals is 30.172°.

More practice questions