A right-angled triangle with an area of 90 square meters, one right-angled side is 12 meters long, and the other right-angled side is how many meters long.
一块面积为90平方米的直角三角形地，一条直角边长12米，另一条直角边长多少米．
<gadget id="calculator">2 / 12</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">90 * (1/6)</gadget>
<output>15</output>

<result>15</result>