Question

Could you please help me out I think that answer is c

Answer 1

Answer:

$y^2=9^2+19^2-2(9)(19)cos(41)$

Step-by-step explanation

That is the one that is correct.

In the picture attached, the angle is in the middle of side C, so the ecuation should be,

$c^2=a^2+b^2-2(a)(c)cos()$