Cone-beam CT dataset showing a slightly overaverage size salivary calculus of 7-8 mm in the left submandibular gland area in the axial (upper left), coronal (lower left), and sagittal (lower right) ...

Image caption, STEP 4: Fill the cone three times in total and empty into the glass. Three cones of water should fill the glass to the top. The glass is a cylinder with volume base x height.