A piece of triangular glass, the height is 2.4 meters, 1.2 times the bottom, 30 yuan per square meter of glass, how much is this piece of glass?
一块三角形玻璃，高是2.4米，是底的1.2倍，每平方米的玻璃30元，这块玻璃多少元？
<gadget id="calculator">2.4 / 1.2</gadget>
<output>2</output>

<gadget id="calculator">2.4 / 2</gadget>
<output>1.2</output>

<gadget id="calculator">2 * 1.2 * 30</gadget>
<output>72</output>

<result>72</result>