Find the area of the triangle having the given measurements. Round to the nearest square unit. 13) C=100, a 3 yards, b = 8 yards Use Heron's formula to find the area of the triangle. Round to the nearest square unit. 14) a = 10 meters, b = 14 meters, c = 6 meters Solve the equation on the interval [0, 2). 15) cos 2x = 2 16) sin x-2 sin x cos x = 0