tolong pls, ada gambarny ya
Jawaban:
[tex]a. \\ 2a + 3a + 4a = {360}^{o} \\ 9a = {360}^{o} \\ a = {40}^{o} \\ b. \\ 4c + 3c + 56 + 89 = {360}^{o} \\ 7c + {145}^{o} = {360}^{o} \\ 7c = {360}^{o} - {145}^{o} \\ 7c = {215}^{o} \\ c = {31}^{o} [/tex]
[answer.2.content]
