X研究来源前往来源一个特大号床垫大约5平方米。[16]X研究来源前往来源
你需要准备
直尺或卷尺计算器
↑https://www.metric-conversions.org/area/square-feet-to-square-meters.htm↑https://www.metric-conversions.org/area/square-yards-to-square-meters.htm↑https://www.metric-conversions.org/area/acres-to-square-meters.htm↑https://www.metric-conversions.org/area/square-miles-to-square-kilometers.htm
更多参考
↑https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/area-triangle/v/example-finding-area-of-triangle↑http://www.fifa.com/aboutfifa/footballdevelopment/technicalsupport/refereeing/laws-of-the-game/law/newsid=1285960.html↑http://www.bluebulbprojects.com/MeasureOfThings/results.php?comp=area&unit=m2&amt=5&p=1&sort=pr