The base of a triangle is 8.5 decimeters and the height is 4 decimeters. What is the area of the triangle in square meters?
一个三角形的底是8.5分米，高是4分米，这个三角形的面积是多少平方米？
<gadget id="calculator">4 / 2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">8.5 * (1/50)</gadget>
<output>0.17</output>

<result>0.17</result>