Mohon bantuannya kak poin banyak

[tex]4. \sin(30) = \frac{ac}{8 \sqrt{3} } = \frac{1}{2} \: \: \: \: \: \: \: \: ac = 4 \sqrt{3} \\ cos(30) = \frac{ab}{8 \sqrt{3} } = \frac{ \sqrt{3} }{2 } \: \: \: \: \: \: \: ab = 12[/tex]
[tex]5. \: \: {(2x)}^{2} = {10}^{2} + {24}^{2} \\ 4 {x}^{2} = 100 + 576 \\ 4 {x}^{2} = 676 \\ {x}^{2} = \frac{676}{4} = 169 \\ x = 13[/tex]