find the volume of the cone

Answer:
The volume of the cone is 12936 cubic mm.
Step-by-step explanation:
Given
Circumference of base = 132 mm
Height of the cone = 28 mm
Solution
Formula of circumference = [tex]2\pi r[/tex] = 132 mm
[tex]\therefore\ r= \frac{132}{2 \pi } = 21 mm[/tex]
Now volume of cone = [tex]\frac{1}{3} \times\pi \times r^{2} \times h[/tex]
on substituting the value of r and h we get ;
[tex]\frac{1}{3}\times\frac{22}{7} \times21\times21\times28= 12936\ mm[/tex]
thus volume of cone is 12936 cubic mm.