The most elementary stage is arithmetical mensuration, which comprises the measurement of the areas of rectangles and parallelepipeds.
From front to back, and consists of two oblong rectangles; the foremost, placed transversely to the other, is the great hypostyle hall or pronaos, the broadest and loftiest part of the temple, measuring 135 ft.
In diameter; each weighs about 1116 tons, and has a nominal breaking strength of 22,320 tons, the actual breaking strength being the floor into rectangles 3 ft.
The shaded rectangles represent the distribution of shear due to the load at C, while no may be termed the datum line of shear.
In dressing mica the "books" are split along the cleavage into sheets of the required thickness, and the sheets trimmed into rectangles with a sharp knife, shears or guillotine, stained and damaged portions being rejected.