Question

In ΔVWX, v = 98 inches, w = 95 inches and x=26 inches. Find the measure of ∠X to the nearest 10th of a degree.

Answer 1

15.4

Explanation:

cos A = b^2 + c^2 - a^2 / 2bc

cos X = 98^2 + 95^2 - 26^2 / 2(98) (95)

cos X = 17953 / 18620

cos X = 0.964

X = cos^-1 (0.964) = 15.38 = 15.4