An isosceles triangle, the length of the base is 6cm, the height above the base is 4cm, the length of the waist is 5cm, what is the height above the waist in cm?
等腰三角形，底边长6cm，底边上的高4cm，腰长5cm，腰上的高是多少cm．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">6 * (4/5)</gadget>
<output>24/5 = around 4.8</output>

<result>24/5 = around 4.8</result>