Earth's circumference

Calculate the Earth's circumference of the parallel 48 degrees and 10 minutes.

Final Answer:

x =  26728.1018 km

Step-by-step explanation:

R=6378 km α=48°10=48°+6010°=48.1667°48.1667   cos α = r/R  r=R cosα=R cos48.166666666667° =6378 cos48.166666666667° =6378 0.666966=4253.90952 km  x=2π r=2 3.1416 4253.9095=26728.1018 km



Did you find an error or inaccuracy? Feel free to send us. Thank you!



Showing 1 comment:
Katy
Nice.  I read that the earth is not a perfect sphere, but this has been a great help.
Thanks





Tips for related online calculators
See also our right triangle calculator.
See also our trigonometric triangle calculator.
Try conversion angle units angle degrees, minutes, seconds, radians, grads.

You need to know the following knowledge to solve this word math problem:

solid geometryplanimetricsgoniometry and trigonometryUnits of physical quantitiesGrade of the word problem

 
We encourage you to watch this tutorial video on this math problem: video1   video2

Related math problems and questions: