Question

How do I solve this problem

Answer 1

Explanation:

In this math, we will be using the law of cosine.

a2 = b2 + c2 − 2bc cosA

This is to note that a here is actually x

a= x

b = 10

c = 9.4

cosA = cos20°

`a = \sqrt{b^(2) +c^(2) - (2bc*cosA) }\\\\a= √(100 +88.36 - (188- 0.94)) \\\\a = √(1.3)\\\\a = 1.14`