The area of a triangle is 28 square centimeters and the height is 7 centimeters. What is the corresponding base in centimeters?
三角形的面积是28平方厘米，高是7厘米，对应的底边是多少厘米．
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">28 * (2/7)</gadget>
<output>8</output>

<result>8</result>