Further Pure Mathematics 4PM1 / Trigonometry / 1.771.77: Areas using trigonometry4PM1/2/June/2017 — Question 5 · 8 marksMark as done · Save for laterIn triangle ABCABCABC, AB=xAB=xAB=x cm, BC=(4x−5)BC=(4x-5)BC=(4x−5) cm, AC=(2x+3)AC=(2x+3)AC=(2x+3) cm and angle ABC=60∘ABC=60^\circABC=60∘.Find, to 3 significant figures,(a) the value of xxx, (5)(b) the area of triangle ABCABCABC. (3)▸ Mark scheme← 1.73: 4PM1/2/January/2017 — Question 101.78: 4PM1/2/June/2017 — Question 10 →
