10 ÷ 3.14 再开方求的半径是 1.78
底面周长是 2 * 3.14 * 1.78 = 11.2
圆柱的高 = 底面周长 = 11.2
圆柱的侧面积 = 11.2*11.2 = 125
总面积 = 125 + 10 + 10 = 145