--------------------------------------- Question 2: --------------------------------------- a² + b² = c² x² + 13² = 15² x² = 15² - 13² x² = 56 x = √56 x = 2√14 units
--------------------------------------- Question 4: --------------------------------------- cos a° = adj/hyp cos (30) = 12/y y = 12 ÷ cos(30) y = 12 ÷ 3√2 y = 4/√2 units
tan a = opp/adj tan(30) = x/12 x = tan(30) x 12 x = 3√3 x 12 x = 36√3 units
