Can someone Please help me visualize this question. I have a very tough time drawing out / visualizing these sort of questions. I was able to figure out that the distance between Point A and Point C is the radius and hence under root 103 but ahead of that I am just not understanding what the right angle will look like.

As the title states, could someone please tell me how they're prompting the Aniko chat bot to provide accurate questions? Every time I ask it to give me 2 similar questions it just gives me two really easy (even If I ask for hard difficulty ) questions that have the exact same answers as the original question I got wrong. If someone could drop a specific prompt I'd be very grateful.