The side length of a triangle is 70 cm and the height is 30 cm, what is its area in square centimeters?
一个三角形的边长是70厘米，高是30厘米，它的面积是多少平方厘米．
<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">70 * 15</gadget>
<output>1_050</output>

<result>1_050</result>