The radius of a circle is 8 cm, what is (3/4) the area of the circle in square centimeters?
一个圆的半径是8厘米，这个圆面积的(3/4)是多少平方厘米．
<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3.14 * 64 * (3/4)</gadget>
<output>150.72</output>

<result>150.72</result>