Soal matematika kelas 8

<p>11. &nbsp;A. AC² = BC² - AB²</p><p>&nbsp;</p><p>12. &nbsp;C. (i), (ii), (iii)</p><p>&nbsp; &nbsp; &nbsp; Ingat : ciri khas segitiga siku siku adalah kuadrat &nbsp; &nbsp; &nbsp; sisi terpanjangnya merupakan penjumlahan &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kuadrat 2 sisi lainnya</p><p>&nbsp; &nbsp; &nbsp; contoh (i) 6, 8, 10</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;6² + 8² = 10²</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 36 + 64 = 100</p><p>&nbsp;</p><p>13. &nbsp;A. √81</p><p>&nbsp; &nbsp; &nbsp; &nbsp; Info dalam soal bahwasanya AB = BD = 9 cm</p><p>&nbsp; &nbsp; &nbsp; &nbsp; maka jawabannya A, karena √81 = 9</p>