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Verified answer
(3x+5) + (3x-5) + 60 = 1806x=180 - 60
6x = 120
X= 20
jadi besar sudut 1: (3x+5) = 3(20)+5 = 65
besar sudut 2: (3x-5) = 3(20)-5 = 55
Verified answer
3x + 5 + 3x - 5 + 60 = 1803x + 3x + 5 - 5 + 60 = 180
6x + 60 = 180
6x = 180 - 60
x = 120 / 6 = 20
besar sudut C = 3x + 5 = 3 x 20 + 5 = 65°.
jawabannya C