Area = √[21(21 - 13)(21 - 14)(21 - 15)] = √[21 * 8 * 7 * 6]. - AMAZONAWS 📅 March 6, 2026 👤 scraface Mar 06, 2026
![Area = √[21(21 - 13)(21 - 14)(21 - 15)] = √[21 * 8 * 7 * 6].](https://soloferat.biz.id/images/area--2121---1321---1421---15--21--8--7--6.jpg)
