a. 5x + 2 = 2x + 50
5x - 2x = 50 - 2
3x = 48
x = 48/3
x = 16
b. Besar sudut AOB
2x + 50
2(16)+50 = 82°
c. Besar sudut AOD
5x + 2
5(16)+2 = 82°
besar sudut keduanya sama karena saling berhadapan
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a. 5x + 2 = 2x + 50
5x - 2x = 50 - 2
3x = 48
x = 48/3
x = 16
b. Besar sudut AOB
2x + 50
2(16)+50 = 82°
c. Besar sudut AOD
5x + 2
5(16)+2 = 82°
besar sudut keduanya sama karena saling berhadapan