can someone please help me out? i will Medal, AND fan!! picture posted below
@campbell_st
Sorry! Can't help ya there.
Sorry, I was trying my best to help you, but I can't figure it out. :(
@robtobey
well you are being asked to find the length of an arc |dw:1400097253379:dw| so if you are 32 degrees north on a great circle then you still have 58 degrees to go to get the the north pole. so if you find the circumference of a circle with radius 3960 miles then the fraction of the circumference you still have to travel is 58/360 so in summary Arc Length \[Arc = \frac{\theta}{360} \times 2 \pi r\] where @ is the angle subtended by the arc. hope it helps
but how do you solve that?
well you know the angle subtended.... 58.... starting at the equator moving up to the north pole... means the angle is 90 degrees if you move up 32 degrees ... you still have 58 to travel... the meridian of longitude is a ' great circle' with a readius 3960 so if you go to the formula I posted @ = 58 and r = 3960 just substitute and then calculate the answer...
does the @ represent the θ ?
thats right
ooh ok.. hold on:)
i got 4008.67.. is that right?
@campbell_st ?
that's the answer I got.
ok thanks so much!!:)
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