jawaban

<p>Ok kakak bantu jawab ya..........</p><p>&nbsp;</p><p>i) 8/a = 9/(9 + 3)</p><p>&nbsp; &nbsp; 8/a = 9/12</p><p>&nbsp; &nbsp; 8/a = 3/4</p><p>&nbsp; &nbsp; a = ( 8 x 4)/3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = 32/3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = 10 2⁄3 cm</p><p>&nbsp;</p><p>ii) b/14 = 12/(12+9)</p><p>&nbsp; &nbsp; &nbsp;b/14 = 12/21</p><p>&nbsp; &nbsp; &nbsp;b/14 = 4/7</p><p>&nbsp; &nbsp; &nbsp;b = (14 x 4)/7</p><p>&nbsp; &nbsp; &nbsp;b = 8 cm</p><p>&nbsp;</p><p>iii) 10/15 = 12/(12+c)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;2/3 = 12/(12 + c)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;24 + 2c = 36 &nbsp; &nbsp; (dikali silang)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;2c = 36 - 24</p><p>&nbsp; &nbsp; &nbsp; &nbsp;2c = 12</p><p>&nbsp; &nbsp; &nbsp; &nbsp;c = 12/2</p><p>&nbsp; &nbsp; &nbsp; &nbsp; c = 6 cm</p><p>&nbsp;</p><p>iv) 18/24 = d/(d+12)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;3/4 = d/(d + 12)</p><p>&nbsp; &nbsp; &nbsp; 4d = 3d + 36 &nbsp; &nbsp;(dikali silang)</p><p>&nbsp; &nbsp; &nbsp; 4d - 3d = 36</p><p>&nbsp; &nbsp; &nbsp; d = 36 cm</p>