Jawabanmu

2014-03-12T18:21:53+07:00
A. sisi = 6+8+10 : 2 = 24:2 = 12 L segitiga = √12(12-6)(12-8)(12-10) = √12(6)(4)(2) = √576 = 24 K segitiga = 6+8+10 = 24 jari² dalam = 24:½x24 = 24:12 = 2 jari² luar = 6x8x10 : 4x24 = 480:96 = 5
2 4 2