円錐の体積の公式は
底面積×高さ×3分の1なので
3×3×π×4×3分の1=9π×4×3分の1
=36π×3分の1
=12π
分からなかったらまた聞いてください!
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉