A triangle whose base is 10cm and height is 6cm is enlarged by 5:1, what is the area of the obtained triangle in cm**2.
一个底是10cm，高是6cm的三角形按5：1放大，得到的三角形的面积是多少cm**2．
<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">50 * 15</gadget>
<output>750</output>

<result>750</result>