边长是1厘米的正方形,它的面积是1cm²,具体分析如下:
若a为正方形的边长,v为正方形的对角线,S为正方形的面积,C为正方形的周长,则:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/1c950a7b02087bf4e6874b29fcd3572c10dfcf83?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/562c11dfa9ec8a1390714b20f903918fa1ecc083?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/c995d143ad4bd113c564abf254afa40f4afb0540?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
综上所述可知:S=1*1=1cm²
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/caef76094b36acaf1080893c72d98d1000e99c89?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
扩展资料:
正方形性质:
1、四个角都是90°,内角和为360°;
2、对角线互相垂直;对角线相等且互相平分;每条对角线平分一组对角;
3、既是中心对称图形,又是轴对称图形;
4、正方形的一条对角线把正方形分成两个全等的等腰直角三角形,对角线与边的夹角是45°;正方形的两条对角线把正方形分成四个全等的等腰直角三角形;
5、 正方形是特殊的矩形,正方形是特殊的菱形。
参考资料来源:百度百科-正方形