Alternative Method 1 24 tan 40 = M1 h tan 50 = 24 h 24 × tan 50 or [28.5, 29] M1dep 24 ÷ tan 40 or [28.5, 29] M1dep × 24 × 24 tan 50 × 24 × (24 ÷ tan 40) A1 [342, 348] B1ft 340 or 350 Must ft from their 3sf answer if seen Alternative Method 2 24 24 cos 50 = sin 40 = M1 x x M1dep 24 ÷ cos 50 or [37.3, 37.5] 24 ÷ sin 40 or [37.3, 37.5] 16 × 24 × 37.3 × sin 50 A1 [342, 348]
16 Alternative Method 1 tan 50 = h 24 M1 tan 40 = 24 h 24 × tan 50 or [28.5, 29] M1dep 24 ÷ tan 40 or [28.5, 29] × 24 × 24 tan 50 M1dep × 24 × (24 ÷ tan 40) [342, 348] A1 340 or 350 B1ft Must ft from their 3sf answer if seen Alternative Method 2 cos 50 = 24 x M1 sin 40 = 24 x 24 ÷ cos 50 or [37.3, 37.5] M1dep 24 ÷ sin 40 or [37.3, 37.5] × 24 × 37.3 × sin 50 [342, 348] A1
November-2014-Paper-2-Mark-Scheme1.docx