Answer:
c = 60.65 cm
Step-by-step explanation:
Given that,
The two sides of a triangle are 33 cm and 37 cm.
The angle between these two sides is 120°.
We need to find the length of the third side of the triangle. Let c is the third side. Using cosine rule,

a = 33 cm, b = 37 cm and C is 120°
So,

So, the length of the third side of the triangle is 60.65 cm.
There are four pairs (m,n) that work: (5,10), (6,6), (8,4), and (12,3).

Explanation

Step 1
multiplicate by the conjugate

notice that


I hope this helsp you