Answer:
5.7 inches
Explanation:
The law of cosines says that if we have a triangle of the form
Then
[tex]t^2=s^2+r^2-2rs\cos T[/tex]now in our case
s = 7.3, r = 1.7 and T = 15 degrees; therefore, the above formula gives
[tex]t^2=7.3^3+1.7^2-2(1.7)(7.3)\cos 15^o[/tex]which evaluates to
[tex]t^2=32.5341.\text{.}[/tex]taking the square root of both sides gives
[tex]t=\sqrt[]{32.5341}[/tex][tex]t=5.7\; in[/tex]which is our answer!
