Since all four of a square’s sides are equal, the “length” measure you obtain for a square will be identical to the “width” measurement. In this case, you only need to measure one side.
For example, let’s say that, for a rectangular area, you measure a length of 4 inches and a width of 3 inches. In this case, the area within your rectangle is 4 × 3 = 12 square inches. In the case of squares, since all four sides are the same, you can simply take the measurement of one side and multiply it by itself (also called “squaring” it or taking it to the second power) to get a square inches value for area.
So, a circle with a radius of 4 inches would have an area of 50. 27 square inches, as this is the product of 3. 14 x 16.
Therefore, if you choose a base side with a length of 4 inches, and the corresponding height is 3 inches, your result will be 2 x 3 = 6 square inches.
Thus, if the length of a chosen side is 5 inches, and the height is 4 inches, the resulting area will be 5 x 4 = 20 square inches.
So, if the long side of your trapezoid is 6 inches, the short side is 4 inches, and the height is 5 inches, the result is ½ x 5 x (6+4) = 25 square inches.
Thus, if your hexagon has 6 equal sides of 4 inches each (which means P = 6 x 4 = 24) and an apothem of 3. 5 inches, the calculation is ½ x 24 x 3. 5 = 42 square inches.
Therefore, if your regular octagon has a side length of 4 inches, you would calculate 2(16) x (1 + 1. 4) = 32 x 2. 4 = 76. 8 square inches.
1 foot = 12 inches 1 yard = 36 inches 1 centimeter = 0. 3937 inches 1 meter = 39. 3701 inches 1 millimeter = 0. 0394 inches
For example, 400 square feet = 400 x 144 = 57600 square inches.
Also, 1 square meter equals 10,000 square centimeters, and one square kilometer equals 10,000,000,000 square centimeters. So, one square kilometer = 10,000,000,000 square centimeters x 0. 155 = 1,550,003,100 square inches.