The base of a parallelogram is 5.2 cm and the height is 5 cm. What is the area of the triangle with the same base and height in square centimeters?
一个平行四边形的底是5.2cm，高是5cm，与它等底等高的三角形的面积是多少平方厘米
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">5.2 * (5/2)</gadget>
<output>13</output>

<result>13</result>