Answer:
30.8 cm³
Step-by-step explanation:
slant height of small cone =l
using; l²= h²+r²
l²=5²+3²=25+9=34
l=√34=5.8cm
volume of small cone =1/3πrl
=1/3(π×3×5.8)
=1/3(54.67)= 18.2 cm³
slant height of big cone =l
using; l²= h²+r²
l²=5²+6²=25+36=61
l=√61=7.8cm
volume of big cone =1/3πrl
=1/3(π×6×7.8)
=1/3(147.02)= 49.0 cm³
49.0-18.2= 30.8 cm³