trapezoidal billboard with an upper base of 8 meters, a lower base of 12 meters, and a height of 10 meters is now painted on both sides. If 0.2 kilograms of paint is used per square meter and 23.5 yuan per kilogram, how much does it cost to paint this billboard? money?
一块梯形广告牌，上底8米，下底12米，高10米，现在将它的双面涂漆，如果每平方米用油漆0.2千克，每千克23.5元，那么涂这块广告牌需要多少钱？
<gadget id="calculator">12 + 8</gadget>
<output>20</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">20 * 5 * 2</gadget>
<output>200</output>

<gadget id="calculator">200 * 0.2 * 23.5</gadget>
<output>940</output>

<result>940</result>