Matematika besar sudut a adalah​

sidneytremblayulv – June 08, 2023

besar sudut a adalah​

Penjelasan dengan langkah-langkah:

a + b + c = 180°

2x + x + 15 + 3x = 180°

6x = 180° - 15°

6x = 165°

2x = 165°/3

2x = 55°

sudut a = 55°

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