An isosceles triangle is formed by a square whose side length is 6 cm. The base length is 7 cm. What is the length of one side in cm?
用一个边长是6厘米的正方形围成一个等腰三角形，底长7厘米，一条腰长多少厘米．
<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">24 - 7</gadget>
<output>17</output>

<gadget id="calculator">17 / 2</gadget>
<output>17/2 = around 8.5</output>

<result>17/2 = around 8.5</result>