The base of a piece of triangular glass is 15dm. The height is 12.8dm. If the price of glass per square meter is 60 yuan, how much does it cost to buy this triangular glass?
一块三角形玻璃的底是15dm．高是12.8dm，如果每平方米玻璃的价格是60元，那么，买这块三角形玻璃要花多少元？
<gadget id="calculator">12.8 / 2 / 100</gadget>
<output>0.064</output>

<gadget id="calculator">15 * 0.064 * 60</gadget>
<output>57.6</output>

<result>57.6</result>