Question

Will someone please help me with number 13 and 14 ?

Answer 1

13. side a = 330, side b = 180
angle x = 180 - 25 = 155

side x = x^2 = a^2 + b^2 - 2ab*cos(x)

330^2 + 180^2 - 2(330)(180)*cos(155) = 498.6 = 499 miles

14. 72.1 degrees