Bermuda triangle A(1,2) B(3,8) C(7,4) ---- when navigators are indicating directions, they generally use the form N40(degrees)E [40 degrees E of N]. If some visitors at an island(origin), need to travel roughly a north-easterly direction, but don't want to pass through the Bermuda Triangle, what range of angle headings should they avoid in order to stay out of the triangle? For example, if they head due east they will clearly avoid the triangle, but a heading of N40(degrees)E may not be quite so safe... (no protractor)

Question

Bermuda triangle A(1,2)  B(3,8)  C(7,4)    ---- when navigators are indicating directions, they generally use the form N40(degrees)E [40 degrees E of N]. If some visitors at an island(origin), need to travel roughly a north-easterly direction, but don't want to pass through the Bermuda Triangle, what range of angle headings should they avoid in order to stay out of the triangle? For example, if they head due east they will clearly avoid the triangle, but a heading of N40(degrees)E may not be quite so safe... (no protractor)