Question

tolong dijawab secepatnya
14. Tentukan nilai x!

15. Nilai y adalah...°

16. Tentukan nilai y!​

Answer 1

Jawaban:

[tex]180 = {(6x - 40)}^{ \circ} + {(5x + 9)}^{ \circ} + {(3x + 15)}^{ \circ} \\ 180 = 14x + ( - 40) + 9 + 15 \\ 180 = 14x + ( - 16) \\ 14x = 180 + 16 \\ 14x = 196 \\ x = 14[/tex]

[tex] {180}^{ \circ} = {135}^{ \circ} + y \\ y = 180 - 135 \\ y = 45[/tex]

[tex] {360}^{ \circ} = y + 90 + 40 + 140 \\ {360}^{ \circ} = y + 270 \\ 360 - 270 = y \\ 90 = y[/tex]