The four cities on the map below form a square. About how many miles is the most direct route from Washington to Springfield?
2 answers:
You might be interested in
In Cartesian coordinates, the region is given by 
, 
, and 
. Converting to cylindrical coordinates, using
we get a Jacobian determinant of
, and the region is given in cylindrical coordinates by 
, 
, and 
.
The volume is then
we get a Jacobian determinant of
The volume is then