Drill sizes are for 75% depth of thread. Metric tap and drill bit size table. Tap sizes are shown as hole size â threads per mm (millimeter). Example 6mm-1.0 = 6mm hole, 1 threads per mm.
How to find the area of a square: The area of a square can be found by multiplying the base times itself. This is similar to the area of a rectangle but the base is the same length as the height. If a square has a base of length 6 inches its area is 6*6=36 square inches.
Finding the Volume and. 1  Surface Area of a Sphere. 2  Surface area of sphere = 4Ïr2. 3  Volume of a sphere = 4/3 Ïr3. 4  You only need to know the radius to figure both the volume and surface area of a sphere. 5  Answers for surface area problems should always be in square units. 6  Answers for volume problems should always be in cubic units.