→‎Volume and surface area: add volume of a cube
→‎Volume and surface area: add volume of a cube
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<math>A(r) = 4\pi r^2</math>
<math>A(r) = 4\pi r^2</math>
== Volume of a cube ==
<math>v(x) = x^3</math>


== Volume of a sphere ==
== Volume of a sphere ==