2y dan 56° bertolak belakang berarti sama dengan.
2y = 56
y = 56/2
y = 28°
Karena 2y dan 4x sehadap maka
4x = 2y
4x = 56
x = 56/4
x = 14°
x + y = 14 + 28 = 42°
c. 42
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2y dan 56° bertolak belakang berarti sama dengan.
2y = 56
y = 56/2
y = 28°
Karena 2y dan 4x sehadap maka
4x = 2y
4x = 56
x = 56/4
x = 14°
x + y = 14 + 28 = 42°
c. 42