The base of a triangle is 40 cm and the height is 14 cm. What is its area in square centimeters?
三角形底是40厘米，高是14厘米，它的面积是多少平方厘米．
<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<gadget id="calculator">40 * 7</gadget>
<output>280</output>

<result>280</result>