Euclidea 2.8 Solution ✔

– but not parallel, sorry. Let's use the actual standard construction of perpendicular: Actually, the standard 3L method is:

However, in Euclidea 2.8, you are not directly given the center O? Wait—careful: In level 2.8, the center is marked. The circle is given with a visible center point. euclidea 2.8 solution