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1 Jawaban
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1. Jawaban CaptainKopasos321
sudut lingkaran full 360
1 . [tex] \frac{100}{360} [/tex] x 3,14 x 6² = 31,4
2. [tex] \frac{25}{360} [/tex] x 3,14 x [tex] r^{2} [/tex] = 31,4
r² = 31,4 x [tex] \frac{360}{25} [/tex] ÷ 3,14
r² = 144
r = 12
3. [tex] \frac{x}{360} [/tex] x 90² x 3,14 = 8478
[tex] \frac{x}{360} [/tex] = 8474 ÷ 3,14 ÷ 8100
[tex] \frac{x}{360} [/tex] = 0.3308
x = 0.3308 x 360
x = 120