', '\
','
', '
\theta = \frac{1}{2} A \quad \text{or} \quad \theta = \frac{A}{2}
\theta = \frac{1}{2} \alpha \quad \text{or} \quad \theta = \frac{\alpha}{2}
A = 2 \times \theta
$ \theta = \frac{1}{2} A \quad \text{or} \quad \theta = \frac{A}{2} $
$ \theta = \frac{1}{2} \alpha \quad \text{or} \quad \theta = \frac{\alpha}{2} $
$ A = 2 \times \theta $ $ \alpha = 2 \times \theta $
$ A = 2 \times \theta $