There are 12 chairs evenly placed beside a round table with a diameter of 1.6 meters. The distance between the edge of the table and the chairs is 40 cm. It is necessary to remove 2 chairs and ensure that the distance between every two chairs remains the same. How many centimeters do you need to move the chair forward? (using the equation method)
一张直径为1.6米的圆桌旁均匀的摆放着12把椅子，桌子的边缘与椅子相隔40厘米，现要撤掉2把椅子，并保证每两把椅子之间的距离保持不变．需将椅子向前移多少厘米．(用方程法)
<gadget id="calculator">100 / 3</gadget>
<output>100/3 = around 33.333333</output>

<result>100/3 = around 33.333333</result>