Tolong dijawabya no. 5, 6 plissss?

5. pelurus dari 44°
= 180° – 44°
= 136°
sudut CBD = 136°

6. 2a + 3a = 90
= 5a = 90
= a = 18
RQS = 2 (18) = 36

semoga bermanfaat…