Besar Sudut ABC….Tolong d jawab yaaa​

(6t + 4) + (4t – 4) = 180
10t = 180
t = 18°

ABC = 6t + 4
ABC = 6(18) + 4
ABC = 108 + 4
ABC = 112° (B)

4t – 4 + 6t + 4 = 180

10t = 180

t = 180 : 10

t = 18

<ABC = <ADC

<ABC = 6t + 4

<ABC = 6(18) + 4

<ABC = 108 + 4

<ABC = 112°(B)