need help with both a and b PLZ

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Mathematics

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Explanation & Answer

radius= 3960 miles

cos 23.5=x/3960

x= 3960cos 23.5= 3631.56 miles

perimeter= 3.142*2*3631.56= 22820.71 miles

distance of two opposite points = diameter= 7263.12 miles................................please best me


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Just the thing I needed, saved me a lot of time.

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