Uncle matched a piece of glass of the same size to the rectangular tabletop with a length of 120 cm and a width of 80 cm. What is the perimeter of this glass in meters?
叔叔给长120厘米、宽80厘米的长方形桌面配了一块同样大小打的玻璃，这块玻璃的周长是多少米．
<gadget id="calculator">120 + 80</gadget>
<output>200</output>

<gadget id="calculator">200 / 100</gadget>
<output>2</output>

<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<result>4</result>