A triangle and a rectangle have the same base and height. The sum of their areas is 75.6 square centimeters. What is the area of this triangle in square centimeters?
一个三角形与一个长方形等底等高，它们的面积之和是75.6平方厘米，这个三角形的面积是多少平方厘米．
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">75.6 / 3</gadget>
<output>25.2</output>

<result>25.2</result>