Berdasarkan gambar tersebut, diketahui bahwa b = 76˚. Besar sudut EBC adalah..
![](https://id-static.z-dn.net/files/d8b/0a0849ca8f446b9da0f5ae260c2c3176.jpg)
Jawaban:
--> sudut BCA
4x-8 = 76°
4x = 84°
x = 21
--> sudut ABC
180°-(4x-8)-(3x+8) =
180°-(4.21-8)-(3.21+8) =
180°-76°-71° = 33°
--> sudut EBC
180°-33°-76° = 71°
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