Jawab:
a. 15°b. 60°
Penjelasan dengan langkah-langkah:
a. A + B + C= 180 90 + 4x + 2x= 180 6x + 90= 180 6x = 90 x= 90/6 x= 15 b.B= 4xB= 4(15) B= 60°
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Jawab:
a. 15°
b. 60°
Penjelasan dengan langkah-langkah:
a.
A + B + C= 180
90 + 4x + 2x= 180
6x + 90= 180
6x = 90
x= 90/6
x= 15
b.
B= 4x
B= 4(15)
B= 60°