Respuesta :

Answer:

8.4

Step-by-step explanation:

The Length of s is 8.4 inches.

What is a triangle?

A flat geometric figure that has three sides and three angles. Something that has three sides and three angles a triangle of land.

Finding the third side.

Let the three sides be q,r,s and the respective angles opposite to these sides be Q, R, S

Let the known side be q, s, and unknown side is s.

Now as per law of cosines:

s=\sqrt(q^2+r^2–2qrcosS)

s=\sqrt(46.24+3.61+20.08)

s=\sqrt(69.93)

s=8.36

s=8.4.

Learn more about triangles:

https://brainly.com/question/2644832

#SPJ2