I don't know if you need the answer to how long the ladder is or what degree the ladder and ground form so I am going to give you both.
The ladder is 58.31 inches
The degree is 59.04
If you have any question let me know
You are right. In circle equation we have =r² so the correct answer will be C od D. But we have to calculate the center of a circle.

Complete the square:

And we have:

So the answer is C (the same left side of equation).
Answer:
The fourth image, or D.
Why?
If you had a ruler and placed it on the grid vertically and moved the ruler left to right, pictures A, B, and C, all have two points that lay on the same X point.
Picture D is the only one that has no points that lay on the same X point, thus making it the right answer.
Thank you for reading into this.
(Hope this helps you! ^^)
Answer:
Ok I will help u
Step-by-step explanation: