Question

Find the length of c if angle A=62 degrees angle B=39 degrees and b = 15.

Answer 1

draw a triangle so you can figure out what you are trying to find
hard just with numbers and no picture

Answer 2

you got one?

Answer 3

drawing it :)

Answer 4

ok, draw it here then we can do it

Answer 5

thats about what it looks like
and this is trig that im working on aswell

Answer 6

you want to use the law of sines
\[\frac{a}{\sin(A)}=\frac{b}{\sin(B)}=\frac{c}{\sin(C)}\] you know \(A, b, B\) but you don't know \(C\) except you do
what is \(C\) ?

Answer 7

i have no idea but yes its law of sines

Answer 8

of course you do

Answer 9

i meant \(A=62,B=39,C=?\)

Answer 10

if it is not clear, i will tell you

Answer 11

79

Answer 12

whew

Answer 13

thats right because triangles =180 degrees
:)

Answer 14

so
\[\frac{15}{\sin(39)}=\frac{c}{\sin(79)}\]

Answer 15

you have 3 out of the 4 numbers, you can find the fourth
\[c=\frac{15\sin(39)}{\sin(79)}\] and a calculator

Answer 16

14.457/ -0.444

Answer 17

correct?