The area of a square is 50% less than the area of a triangle. The perimeter of the square is 10 cm. The height of the triangle is 5 cm. What is the base in cm?
一个正方形的面积比一个三角形的面积少50%，正方形的周长是10厘米，三角形的高是5厘米，底是多少厘米．
<gadget id="calculator">10 / 4</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) * (5/2)</gadget>
<output>25/4 = around 6.25</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">(25/4) / (1/2)</gadget>
<output>25/2 = around 12.5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(25/2) * (2/5)</gadget>
<output>5</output>

<result>5</result>