Bantu jawab ya kak

Bantu jawab ya kak

$sin(30) = frac{BC}{AB} \ frac{1}{2} = frac{BC}{12} \ BC = frac{1}{2} times 12 \ BC = 6$

$cos(30)=frac{AC}{AB} \ frac{1}{2} sqrt{3} = frac{AC}{12} \ AC = frac{1}{2} sqrt{3} times 12 \ AC = 6 sqrt{3}$