A.10 Areas
- Page ID
- 89658
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- Area of a rectangle
\begin{align*} A &= b h \end{align*}
- Area of a triangle
\begin{align*} A &= \frac{1}{2} b h = \frac{1}{2} ab \sin \theta \end{align*}
- Area of a circle
\begin{align*} A &= \pi r^2 \end{align*}
- Area of an ellipse
\begin{align*} A &= \pi ab \end{align*}