1.1 - 2015 Q8
8) Fig. 8 shows a right-angled triangle with base 2x + 1, height h and hypotenuse 3x.
(i) Show that h2 = 5x2 – 4x – 1. (2)
ii) Given that h = √7, find the value of x, giving your answer in surd form. (3)
ii) Given that h = √7, find the value of x, giving your answer in surd form. (3)