Find the measure of angle T

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Find the measure of angle T

Mathematics
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Other answers:

I used the law of cosines but my anwer doen't match any of the options
show ur work? what did you get ?
My work is: 8.5^2 = 13^2 + 11^2 -2(11)(13) cosT
My answer was 8.65
alright gimme a sec
well i didn't get 8.65
What did you do?
And what did you get?
Wait, I just did it again and got 40.5...
well i took square of 8.5 and 11 13 and then add 11^2 + 13^2 ...
Is that right?
do you have options ?
40.5° 76° 67° 35.4°
I got A the second time
let me do it again i just want to mke sure..
ok
i got 40.447 so that's the only one looks right
yeah, thanks!
do u think u can help me in one more problem?
i'lltry
ok, so we need to find the measure of angle T again but with this triangle
12^2 = 19^2 + 22^2 - 2(19) (22) cosT 144 = 361 + 484 - 836 cosT 144 = 845 - 836 cosT -701 = -836 cosT -701 / -836 = cosT 0.8385167464 = cosT cos^-1 (0.8385167464) = cos^-1 (cosT) 33.02 ≈ T
That's my work and answer
right
Thank u!!!

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