The two sides of a right triangle are 8 meters and 3 meters respectively, and the height of the hypotenuse is 1.2 meters. How long is the hypotenuse of this triangle in meters?
一个直角三角形的两条直角边分别是8米和3米，斜边的高是1.2米，这个三角形的斜边长多少米？
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<gadget id="calculator">2 / 1.2</gadget>
<output>1.666667</output>

<gadget id="calculator">12 * 1.666667</gadget>
<output>20.000004</output>

<result>20.000004</result>