180 : 2x + 20
160 : 2 x
x : 80°
semoga membantu :)
Jawaban:
b. 80°
Pembahasan:
(x+50°)+(x-30°)=180°
x=80°
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180 : 2x + 20
160 : 2 x
x : 80°
semoga membantu :)
Jawaban:
b. 80°
Pembahasan:
(x+50°)+(x-30°)=180°
x=80°