tolong dijawab pakai caranya tugas nih besok

(4p - 6) + (4p + 4) + (180 - 7p - 13) = 180
p = 15

sudut A = sudut C
= 4p - 6
= 4 . 15 - 6
= 54

Sudut CDA
= 180 - 54
= 126°