Answer:
no understand I live in myanmar .I donot know mathamatic
By the law of cosines, the angle

satisfies

which reduces to

which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
Answer:

Step-by-step explanation:
We will use the distance formula to solve.





<em>Read more about using the </em><em>distance formula</em><em> here: brainly.com/question/15691280</em>