sudut ADC dengan sudut BAD saling bertolak belakang, berarti sudutnya sama
* mencari nilai x
<ADC = <BAD
5x - 7 = 3x + 25
5x - 3x = 25 + 7
2x = 32
x = 32/2
x = 16
* besar sudut ADC
<ADC = 5x - 7
<ADC= 5(16) - 7
<ADC= 80 - 7
<ADC = 73
opsi jawaban = B
semoga membantu, maaf kalau salah
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sudut ADC dengan sudut BAD saling bertolak belakang, berarti sudutnya sama
* mencari nilai x
<ADC = <BAD
5x - 7 = 3x + 25
5x - 3x = 25 + 7
2x = 32
x = 32/2
x = 16
* besar sudut ADC
<ADC = 5x - 7
<ADC= 5(16) - 7
<ADC= 80 - 7
<ADC = 73
opsi jawaban = B
semoga membantu, maaf kalau salah