The diameter of the base of the cylinder is 7 cm and the height is 8 cm. Find the lateral area.
圆柱的底面直径是7厘米，高是8厘米，求侧面积．
<gadget id="calculator">3.14 * 7 * 8</gadget>
<output>175.84</output>

<result>175.84</result>