13(a)Sine Cosine RulesMedium4 marksThe diagram shows triangle ABC. BC=15 cm, AC=153 cm and angle ABC=120∘.Show that triangle ABC is an isosceles triangle.AnswerTypeWriteMath0 wordsGrade answerSolutionGrading criteria
13(b)Sine Cosine RulesMedium3 marksCalculate the shortest distance from B to AC.AnswercmGrade answerSolutionGrading criteria