How far is C3 from T5 if the distance from Cz to C3 is 6 cm and C3 to T5 is 3 cm?

To determine the distance from C3 to T5, it's essential to recognize how these points are positioned along the midline of the scalp. The distance from Cz to C3 is given as 6 cm, and the distance from C3 to T5 is 3 cm.

To find the total distance from Cz (the reference electrode) to T5, you can simply add both individual distances together. While the question specifically asks for the distance from C3 to T5, it combines the distances effectively since 6 cm (Cz to C3) and 3 cm (C3 to T5) together sum up to 9 cm. However, the context of measuring only the distance from C3 directly to T5 without considering Cz simplifies the question.

Since C3 is not adjacent to T5, the distance from C3 to T5 is indeed calculated as 3 cm directly, based on the provided measurement from C3 to T5 alone. Therefore, the correct answer aligns with the measurement provided, showing the direct distance between these two points rather than the total distance when including Cz.