4. (10 points) As shown in the figure, each small square grid has an area of 1 square centimeter. Xiaoming drew a silhouette of a fiery red horse on the grid paper (the outline of the horse is composed of small line segments, with the endpoints of the line segments on the grid points or grid lines). The area of this silhouette is square centimeters.



保留源文本的换行和格式，直接输出翻译结果如下：

4. (10 points) As shown in the figure, each small square grid has an area of 1 square centimeter. Xiaoming drew a silhouette of a fiery red horse on the grid paper (the outline of the horse is composed of small line segments, with the endpoints of the line segments on the grid points or grid lines), then the area of this silhouette is square centimeters.
56
【Analysis】According to the problem, the silhouette in the figure can be divided into several parts, then the area of each part is marked, and the area of each part is obtained using the properties of cutting and pasting, and finally the sum is calculated.

【Solution】Solution: According to the analysis, as shown in the figure, the silhouette is divided, and through division and the grid point area formula, the total area of the small horse silhouette $=0.5+3+16+2+1+2.5+3+0.5+1.5+12+3+2+0.5+3+0.5+1+2+1.5+0.5=56$ (square centimeters). Therefore, the answer is: 56.