A taxi in a certain city starts at 2 kilometers, and the starting price is 3 yuan. If it exceeds 2 kilometers, the fee is 1.2 yuan per kilometer. Aunt Zhao took a taxi from home to the park and paid 10.2 yuan when she got off. Her home is far from the park. How far?
某市出租车2千米起步，起步价为3元，超过2千米，每千米收费1.2元，赵阿姨从家乘出租车去公园，下车时付了10.2元，她家离公园有多远？
<gadget id="calculator">10.2 - 3</gadget>
<output>7.2</output>

<gadget id="calculator">7.2 / 1.2</gadget>
<output>6</output>

<gadget id="calculator">6 + 2</gadget>
<output>8</output>

<result>8</result>