Industrial drawing and geometry; an introduction to various branches of technical drawing (1911)
Spooner, Henry John, 1856- · London, New York [etc.] Longmans, Green, and co. · leaf 61
ver your inch squares and count the number enclosed, you find that there are 12 x 12 = 144, as in Fig. 127 ; that is to say, You have doubtless in buying stamps often counted them in this way: you do not trouble to count each one, you count the number in a row and multiplyit by the number of rows.… … f 1 1 1 1 1 1 1 1 1 1 1 1 I ^ Area of Rectangle LXB 1 ^— — ._ — —^ •- (W I }IL Fig. 125.—Comparison of square inchand square centimetre. Pig. 126.- -Area of rectangularfloor. AREAS AND THEIR MEASUREMENTS 43 each tile has an area 144 times the area of one of your inch squares. And of course it…
Mechanical drawing · Geometrical drawing
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