imation yields $$P=36\pi+ 36\pi\cdot
      0.02 +12\pi (0.02)^2 =36.7248\pi.$$</li>

      <li>A third order approximation yields $$P=36\pi+36\pi\cdot
      0.02 +12\pi (0.02)^2+\frac{4}{3}\pi(0.02)^3
      =36.724810\bar6\pi.$$</li>
    </ol>

    <p>With each approximation, we add on a little more volume to
    get closer to the actual volume of a sphere with radius
    $r=3.02$. The actual volume of a sphere involves a cubic
    function, so when we approximate the volume with a cubic, we
    should get 