A piece of triangular glass has a base of 12 decimeters and a height of 8 decimeters. If the price of glass per square decimeter is 1.2 yuan, how much will it cost to buy this piece of glass?
一块三角形的玻璃，量得这它的底是12分米，高是8分米．如果每平方分米玻璃的价钱是1.2元，买这块玻璃要用多少钱？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">12 * 8 * (1/2)</gadget>
<output>48</output>

<gadget id="calculator">1.2 * 48</gadget>
<output>57.6</output>

<result>57.6</result>