Question

In ΔGHI, i = 84 inches, g = 82 inches and ∠H=17°. Find the length of h, to the nearest inch.

Answer 1

25 inches

Explanation:

Use law of cosine:

c² = a² + b² − 2ab cos C

h² = (84)² + (82)² − 2(84)(82) cos 17°

h = 24.6

Rounded to the nearest inch, h is 25 inches.