PLEASE HELP (GEO) Find X Round to the nearest tenth. 20 ft \22 ft Y X 18 ft X= [?] Law of Cosines: c2 = a2 + b2 - 2ab cos C

asked Jul 4, 2022 41.5k views

4 votes

PLEASE HELP (GEO) Find X

Round to the nearest tenth.
20 ft
\22 ft
Y
X 18 ft
X= [?]
Law of Cosines: c2 = a2 + b2 - 2ab cos C

$PLEASE HELP (GEO) Find X Round to the nearest tenth. 20 ft \22 ft Y X 18 ft X= [?] Law-example-1$

by Bpaul

8.0k points

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3 votes

Answer:

70.5°

Explanation:

cos x = (20²+18²-22²)/2(20)(18)

= (400+324-484)/720

= 240/720

= 1/3

so, X = arc cos ⅓ = 70.5°

Mlohbihler answered Jul 8, 2022

6.9k points

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