What similarity theorem can be used to prove the triangles below similar?

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Pls brainliest will be awarded if answer is correct