Answer:
x=+-
Step-by-step explanation:
=
+ 
=64+25
=89
x=+-
<h3> - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - -
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➷Simply multiply by 2:
3 x 2 = 6
It would be 6 units
➶Hope This Helps You!
➶Good Luck :)
➶Have A Great Day ^-^
↬ Hannah ♡
Could you resend the picture it isn't clear?
Answer:
or 
Step-by-step explanation:
we know that
Applying the law of cosines

In this problem we have

c is the length of the third side
Substitute




or 
The answer is false. n^2 would become 6^2 which is equal to 36 not 12