㈠ 500绔嬫柟绫冲彂閰电绨鐩村缎鍜岄珮澶氩皯
涓鑸鍙栭珮寰勬瘆1:3锛屼綋绉=h*d^2*3.14/4=3*d^3/4*3.14=500锛宒=5.966锛屽彇鐩村缎5.9绫筹纴妞鍦嗗皝澶村圭Н涓27.9776绔嬫柟锛岀绨鐩寸瓛楂17.7绫筹纴缃愭湁鏁埚圭Н511绔嬫柟