A = \sqrt{s(s - a)(s - b)(s - c)} = \sqrt{21(21 - 13)(21 - 14)(21 - 15)} = \sqrt{21 \times 8 \times 7 \times 6} = \sqrt{7056} = 84 \text{ سم}^2! 🎧 fey braun tara thorough content browse recent. real-world examples with mobile app access. explore top-quality videos without signup. WARNING: Explicit Content!
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