There is a triangle whose area is exactly equal to the area of a circle with a diameter of 1 meter. It is known that the base of the triangle is 15.7 meters. What is the height of the triangle in meters?
有一个三角形，它的面积与直径是1米的圆形的面积正好相等，已知三角形的底是15.7米，三角形的高是多少米？
<gadget id="calculator">0.5 ** 2</gadget>
<output>0.25</output>

<gadget id="calculator">3.14 * 0.25</gadget>
<output>0.785</output>

<gadget id="calculator">2 / 15.7</gadget>
<output>0.127389</output>

<gadget id="calculator">0.785 * 0.127389</gadget>
<output>0.1</output>

<result>0.1</result>