Use a piece of rectangular red paper with a length of 10 decimeters and a width of 6 decimeters to make a small triangular flag with two right-angled sides of 5 cm and 3 cm respectively. How many sides can be made in total?
用一张长10分米，宽6分米的长方形红纸，做成两直角边分别为5厘米和3厘米的三角形小旗，一共可以做几面？
<gadget id="calculator">10 / 5</gadget>
<output>2</output>

<gadget id="calculator">10 * 2</gadget>
<output>20</output>

<gadget id="calculator">10 / 3</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">6 * (10/3)</gadget>
<output>20</output>

<gadget id="calculator">20 * 20 * 2</gadget>
<output>800</output>

<result>800</result>