Re-arrange the formula to:
Angle A = ArcCos((b^2+c^2-a^2)/2bc)
=> Angle A = ArcCos((49+36-81)/84)
=> Angle A = ArcCos(1/21)
=> Angle A = 87.3 degrees
For radius of turn, re-arrange the formula to:
r = v^2/g
=> r = ((300 * 0.514)^2) / 9.81 = 2423.8, being 2.4238 km or about 1.5 miles or about 1.3 NM
Hope this helps
PM
Last edited by pilotmike; 12th Aug 2008 at 08:55.
Reason: corrected error in re-arrangement