The area of a circle is 37.68 square centimeters. There is a sector inside the circle whose inner angle is 120°. What is the area of this sector?
一个圆的面积是37.68平方厘米，圆内有一个圆内角是120°的扇形，这个扇形的面积是多少．
<gadget id="calculator">120 / 360</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 37.68</gadget>
<output>12.56</output>

<result>12.56</result>