How big is Zhongshan Park in Yinchuan, Ningxia?

Obtaining the map from Baidu map, the distance between north and south is about 700 meters, and the distance between east and west is about 700 meters.

700m× 700m = 490,000m2

Visually, 40,000 ㎡ is subtracted from the gray part of the non-park area, which is about 450,000 ㎡.

Unit conversion: 45 hectares and 675 mu.