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17-09-2020
Mathematics

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

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17-09-2020

Answer:

25 inches

Step-by-step 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.

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