piece of triangular glass has a base of 12.5 meters and a height of 4.6 meters. It costs 3450 yuan to buy this piece of glass. How much is this glass per square meter?
一块三角形的玻璃，它的底是12.5米，高是4.6米，买这块玻璃用去3450元，这种玻璃每平方米多少钱？
<gadget id="calculator">4.6 / 2</gadget>
<output>2.3</output>

<gadget id="calculator">12.5 * 2.3</gadget>
<output>28.75</output>

<gadget id="calculator">3_450 / 28.75</gadget>
<output>120</output>

<result>120</result>