Bearing and distance- City A is 300km deu east of city B, city C is 200km on a bearing of 123degress from city B. How far is it from C to A
Bearing and distance- City A is 300km due east of city B, city C is 200km on a bearing of 123degress from city B. How far is it from C to A... Solution Using the cosine rule formula a^2= b^2+c^2-2bccosA So therefore, b^2=a^2+c^2-2acCosB b(squared) = 200squared+300squared-2(200*300)cos33 = 40000+90,000-120,000cos33 =130,000-100640.47 =29359.53 b= square root of 29359.53 b=171.34... You find it simple? comment below