Tegak lurus: Difference between revisions
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Line 11:
Dengan menggunakan aturan sinus, kita dapat mencari panjang garis AB<br>
<math>
\begin{align}
\frac{AB}{\sin{a}} &= \frac{r}{\sin{x}} \\ \\
\frac{AB}{\sin{a}} &= \frac{r}{\sin{x}}
\end{align}
</math>
Line 20 ⟶ 21:
<math>
\begin{align}
\
\sin{a} &= \sin{180-2x}
\sin{a} &= \sin{2x} &.. (2)
\end{align}
</math>
Line 29 ⟶ 32:
<math>
\begin{align}
\frac{AB}{
\frac{AB}{2
AB &= 2r \cos{x}
\end{align}
</math>
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