Question

Geometry Help!

Please only answer if you know the answer. Look at the image below to answer the question.

Be sure to show all of your work and explain your thinking.

I posted 3 of these, so if you understand it, please go and check them out.

If you do not know the answer use the comment section, don't answer my question with a comment. Thanks, Good Luck!

Answer 1

• x = 88.76°

Explanation:

Use the law of cosines:

• cos C = (a² + b² - c²)/(2ab)

Apply to the given triangle and solve for x:

• cos x = (52² + 48² - 70²)/(2*52*48)
• cos x = 108/4992
• cos x = 0.02163461538
• x = arccos 0.02163461538
• x = 88.76°