A TV cabinet, 1.5 meters long, 60 cm wide, and 50 cm high, should be painted on the outside of its upper, rear, left and right sides. How much area to paint?
一个电视柜，长1.5米，宽60厘米，高50厘米，要在它的上、后面、左面和右面的外侧刷油漆．刷油漆的面积是多少？
<gadget id="calculator">1.5 * 0.6</gadget>
<output>0.9</output>

<gadget id="calculator">1.5 * 0.5</gadget>
<output>0.75</output>

<gadget id="calculator">0.6 * 0.5 * 2</gadget>
<output>0.6</output>

<gadget id="calculator">0.9 + 0.75 + 0.6</gadget>
<output>2.25</output>

<result>2.25</result>