Kakak tolong bantu jawab kakak

<p>a. &lt;x = 180° - (43° + 37°)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 180° - 80°</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 100°</p><p>&nbsp; &nbsp; Besar &lt;x adalah 100°</p><p>&nbsp;</p><p>b. &lt;x = 25° + 55°</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 80°</p><p>&nbsp; &nbsp; Nilai &lt;x adalah 80°</p><p>&nbsp;</p><p>c. &lt;x = 180° - (90° + 65°)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 180° - 155°</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 25°</p><p>&nbsp; &nbsp; Nilai &lt;x adalah 25°</p>