Tolong kak butuh bantuannya 🙏🏻

<p>Jawaban yang tepat adalah&nbsp;</p><p>a. z = x = 70°</p><p>b. KL = 10 cm</p><p>&nbsp;</p><p>Pembahasan :</p><p>Trapesium ABCD dan KLMN kongruen artinya kedua trapesium tersebut adalah sama persis baik bentuk maupun ukuran.</p><p>&nbsp;</p><p>a. Nilai x dan z</p><p>&nbsp; &nbsp; &nbsp;&lt;BCD = 110°</p><p>&nbsp; &nbsp; &lt;BCO = &lt;BCD - &lt;DCO</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 110° - 90°</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 20°</p><p>&nbsp; &nbsp; &lt;BCO = &lt;KLO = 20°</p><p>&nbsp; &nbsp;&lt;OBC = &lt;OKL = 180° - (&lt;BCO + &lt;BOC)</p><p>&nbsp; &nbsp;z = x = 180° - (20° + 90°)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 180° - 110°</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 70°</p><p>&nbsp;</p><p>b. AD = MN = 8 cm</p><p>&nbsp; &nbsp; &nbsp;AB = KN = 15 cm</p><p>&nbsp; &nbsp; &nbsp;CD = LM = 9 cm</p><p>&nbsp; &nbsp; &nbsp;LO = MN = 8 cm</p><p>&nbsp; &nbsp; &nbsp;OK = KN - ON</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 15 - 9</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 6 cm</p><p>&nbsp; &nbsp; KL = √(LO² + OK²)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= √(8² + 6²)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= √(64 + 36)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= √100</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 10 cm</p><p>(Ilustrasinya lihat gambar dibawah)</p>