Foundation November 2018 Paper 2 Q26EduqasFoundationCurrent spec6 marksBasic Trigonometry26.(a) Diagram not drawn to scaleCalculate the value of \(x\). [3](b) Diagram not drawn to scaleCalculate the size of angle \(a\). [3]Mark scheme (a)Mark scheme (b)Mark scheme (a)SchemeMarksComments\(\tan 42 = x/12\)M1\(x = 12 \times \tan 42\)M1\(x = 10.8(\ldots)\)A1Accept an answer of 11(cm) from correct working.Mark scheme (b)SchemeMarksComments\(\sin a = {}^{10}/_{80}\) or equivalentM1\(a = \sin^{-1}({}^{10}/_{80})\)A1\(a = 7(.18^\circ)\)A1(6)
