A 1-meter cylindrical wood is sawn into two parts along the diameter of the bottom, and the circumference of the bottom of one part is 25.7cm. Find the surface area of this part of wood?
一根1米的圆柱形木料沿底的直径锯成两部分，其中一部分底面周长25.7cm，求这部分木料的表面积？
<gadget id="calculator">1_570 + 157 + 1_000</gadget>
<output>2_727</output>

<result>2_727</result>