How many centimeters is a palace in Feng Shui?

How many centimeters is a palace in Feng Shui? -centered on the compass, surrounded by a circle, this circle is divided into eight equal parts, and these eight equal parts are a radiation sector, and each equal part is a palace. Suppose a house is measured and the sector of the house is divided into eight equal parts, each of which is a palace; Suppose you measure a house and divide the sector of the house into eight equal parts, each equal part is a palace; Suppose a house is measured, and the sectors radiated by the house are divided into eight equal parts, and each equal part is a palace; Suppose we measure the earth and divide it into eight sectors with a compass as the center, and each sector is a palace. The palace is an eight-divided fan with the compass as the center and radiating outward; The middle point of the compass and the small point of the compass thimble are the middle palace.