Mohon dibantu kak deadline nya malam ni

Mohon dibantu kak deadline nya malam ni

$sin : a = frac{bc}{ac} \ sin : 30 = frac{bc}{10} \ frac{1}{2} = frac{bc}{10} \ bc = 5cm$

$cos : a : = frac{ab}{bc} \ cos : 30 = frac{ab}{10} \ frac{1}{2} sqrt{3} = frac{ab}{10} \ ab = 5 sqrt{ 3} cm$