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.
Maximum area of rectangle with fixed perimeter. The result you need is that for a rectangle with a given perimeter the square has the largest area. So with a perimeter of 28 feet, you can form a square with sides of 7 feet and area of 49 square feet. This follows since given a positive number $A$ with $xy = A$ the sum $x + y$ is smallest when $x = y = \sqrt{A}$. You have $2x + 2y = P \implies x + y = P/2$, and you want to find the maximum of the area, $A = xy$.