Question

i have a few questions that i would really love to have someone check over for me!

the first one is:
find the length of a.

i'll post a pic of the triangle below---the answer i got was 22.18 but i want to make sure i'm correct!

Answer 1

use law of cosines here to geet result..can you show your work...?

Answer 2

yes. i used the formula: a^2+b^2+c^2-2bc cos(a)
which got me: a^2=15^2+12^2-2(15)(12) cos(110)
that came out to be 493.1273516 when i calculated it.
and since a^2 equals that number, i took the square root of 493.1273516 to get just a, which came out to be 22.18. @zaibali.qasmi

Answer 3

yepp..its xactly right..

Answer 4

thank you! @zaibali.qasmi