A parallelogram plate has a base of 3.5 meters and a height of 2 meters. If the steel plate weighs 15 kilograms per square meter, how many kilograms does the steel plate weigh in total?
一块平行四边形钢板，底是3.5米，高是2米．如果每平方米钢板重15千克，那么这块钢板共重多少千克？
<gadget id="calculator">3.5 * 2</gadget>
<output>7</output>

<gadget id="calculator">15 * 7</gadget>
<output>105</output>

<result>105</result>