Question

Find the measure of angle T

Answer 1

@Nnesha

Answer 2

@Hero

Answer 3

@Preetha

Answer 4

I used the law of cosines but my anwer doen't match any of the options

Answer 5

show ur work?
what did you get ?

Answer 6

My work is:
8.5^2 = 13^2 + 11^2 -2(11)(13) cosT

Answer 7

My answer was 8.65

Answer 8

alright gimme a sec

Answer 9

well i didn't get 8.65

Answer 10

What did you do?

Answer 11

And what did you get?

Answer 12

Wait, I just did it again and got 40.5...

Answer 13

well i took square of 8.5 and 11 13
and then add 11^2 + 13^2 ...

Answer 14

Is that right?

Answer 15

do you have options ?

Answer 16

40.5°

76°

67°

35.4°

Answer 17

I got A the second time

Answer 18

let me do it again i just want to mke sure..

Answer 19

ok

Answer 20

i got 40.447
so that's the only one looks right

Answer 21

yeah, thanks!

Answer 22

do u think u can help me in one more problem?

Answer 23

i'lltry

Answer 24

ok, so we need to find the measure of angle T again but with this triangle

Answer 25

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

Answer 26

That's my work and answer

Answer 27

@Nnesha

Answer 28

right

Answer 29

Thank u!!!