The three sides of the triangle are 3 cm. 4 cm. 5 cm. What is the height in centimeters on the hypotenuse of this triangle?
三角形三条边分别是3厘米.4厘米.5厘米．这个三角形斜边上的高是多少厘米？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

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

<gadget id="calculator">3 * 2 * (2/5)</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>