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Section B.2 Areas and Volumes
Triangles
-
\(\displaystyle h=a\sin \theta\)
-
-
Law of Cosines:
\begin{equation*}
c^2=a^2+b^2-2ab\cos \theta
\end{equation*}
Right Circular Cone
-
Volume =
\(\frac 13 \pi r^2h\)
-
Surface Area =
\(\pi r\sqrt{r^2+h^2} +\pi r^2\)
Right Circular Cylinder
-
-
Surface Area =
\(2\pi rh +2\pi r^2\)
Sphere
-
Volume =
\(\frac43\pi r^3\)
-
Surface Area =
\(4\pi r^2\)
Circles
-
-
Circumference =
\(2\pi r\)
Sectors of Circles
-
-
Area =
\(\frac12\theta r^2\)
-
\(\displaystyle s=r\theta\)
