A. b = 2 x (√a² - (sin a x a)²)
b = 2 x (√a² - (1/2 x 6)²)
b = 2 x (√36 - (1/4 x 36))
b = 2 x (√36 - 9)
b = 2 x (√27)
b = 2 x (3√3) = 6√3
B. panjang c = panjang a = 6 cm
C. besar sudut C = 180 - 30 -120 = 30 cm
maaf kl ad ksalahan
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A. b = 2 x (√a² - (sin a x a)²)
b = 2 x (√a² - (1/2 x 6)²)
b = 2 x (√36 - (1/4 x 36))
b = 2 x (√36 - 9)
b = 2 x (√27)
b = 2 x (3√3) = 6√3
B. panjang c = panjang a = 6 cm
C. besar sudut C = 180 - 30 -120 = 30 cm
maaf kl ad ksalahan