Question

Find the length of side x using the Law of Cosines.

Answer 1

Answer:

The length of side x is 22.91

Step-by-step explanation:

As per law of cosine

$X = \sqrt{a^2 + b^2- 2*a*bcos\gamma}$

Where

$gamma = 56$ degrees

a = 20

b = 27

Substituting the given values in above equation, we get -  

$X = \sqrt{20^2 + 27^2 - 2*20*27*cos 56} \\X = 22.91$

Hence, the length of side x is 22.91