Hope Primary School has a cuboid classroom with a length of 10 meters, a width of 6 meters and a height of 3.5 meters. How big is the space of this classroom?
希望小学有一间长10米、宽6米、高3.5米的长方体教室，这间教室的空间有多大？
<gadget id="calculator">10 * 6 * 3.5</gadget>
<output>210</output>

<result>210</result>