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. S = ½×Ksegitiga = ½×22= 11 cm
.Luas segitiga = √s(s-7)(s-7)(s-8)
√11(11-7)(11-7)(11-8)
√11×4×4×3 = √528
itu soalnya nggak kliru a? soalnya akar dari 528 nggk ada.
maaf hanya smpek itu.