圆锥的高h=3√3设圆锥底面圆的半径为r则 圆锥的母线l=√（r²+27）圆锥底面圆的周长=2πr=侧面展开半圆的周长=π*√（r²+27）求得：r=3,母线 l =6圆锥底面积=π*r²=9π圆锥的体积=底面积*高÷3=9π*3...