Christmas MT's answer to Victoria's Secondary 3 E Maths question.
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As I mentioned to the other girl, bearings are just an extension of angles. You'll still only be using sine, cosine rules and area of triangle formula.
(i) Finding BC is a matter of finding angle BAC then applying cosine rule.
(ii) Pretty long and roundabout.
(iii) Now that you have learnt 2 different formulae to find the area of a triangle, finding the shortest distance is always about comparing these formulae. Remember that the shortest distance is always perpendicular.
(i) Finding BC is a matter of finding angle BAC then applying cosine rule.
(ii) Pretty long and roundabout.
(iii) Now that you have learnt 2 different formulae to find the area of a triangle, finding the shortest distance is always about comparing these formulae. Remember that the shortest distance is always perpendicular.
Date Posted:
6 years ago
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