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

Schadenfreude asked Oct 24, 2022

525,463 views

23 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

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

Schadenfreude asked Oct 24, 2022

2.7k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

19 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°

Ottomeister answered Oct 30, 2022

2.8k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers