Using a piece of rectangular paper with a length of 12 decimeters and a width of 4 decimeters, how many pieces can be cut into an isosceles triangle whose right angle side is 4 decimeters?
用一张长12分米、宽4分米的长方形纸，裁成直角边是4分米的等腰三角形，共可以裁成几张？
<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">4 / 4</gadget>
<output>1</output>

<gadget id="calculator">3 * 1 * 2</gadget>
<output>6</output>

<result>6</result>