Answer:
r=2.9 cm
Step-by-step explanation:
Given:
volume=486π cm^3
height=18 cm
volume of a cone=πr^2h
486=π*r^2*18
486=18π*r^2
486/18=πr^2
27/π=r^2
27/3.14=r
8.5987=r^2
[tex]\sqrt{8.5987[/tex] =r
2.9323 =r
2.9=r(after converting to nearest tenth)
