The aim of this lecture is to present on Calculus Notes. Volumes by slicing can be found by adding up each slice of the solid as the thickness of the slices gets smaller and smaller, in other words the number of slices goes to infinity. To find the volume of each slice of the pyramid you would find the area of each square then multiply the area by the thickness of the slice. The thickness would be dx because we are slicing with respect to the x-axis. Next you would add the volumes of each slice together to find the total volume.