triangle and a parallelogram have the same base and the same area. If the height of the triangle is (7/10) cm, what is the height of the parallelogram in cm?
一个三角形和一个平行四边形等底等面积，若三角形的高是(7/10)cm，那么平行四边形的高是多少cm？
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(7/10) / 2</gadget>
<output>7/20 = around 0.35</output>

<result>7/20 = around 0.35</result>