Question

I need help quickly with these problems please see the images thank you so much

Answer 1

Using cosine law:
 24 ^ 2 = 10 ^ 2 + 16 ^ 2 -2 * 10 * 16 * cos (G)
 Clearing we have:
 cos (G) = (24 ^ 2-10 ^ 2-16 ^ 2) / (- 2 * 10 * 16)
 cos (G) = - 0.6875
 Clearing the angle:
 G = acos (-0.6875)
 G = 133.4325366
 Rounding:
 G = 133.4
 Answer:
 G = 133.4
 option 4