What is the area of the largest triangle to be cut out of a semicircular piece of paper with a diameter of 2 decimeters?
要在一块直径是2分米的半圆形纸上割下一个最大的三角形，它的面积是多少？
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 * (1/2)</gadget>
<output>1</output>

<result>1</result>