A hand book of general instruction for mechanics, containing useful rules and memoranda for practical men (1907)
Smith, Franklin Elijah, 1872- · New York, D. Van Nostrand company · leaf 202
Fig. 7 Half the height = 2 inches; then 2 X 12 = 24 squareinches. Example. Find the area of a triangle whose base is15 feet and whose height is 9 feet. (Fig. 8.) Half the height = 4.5; then 4.5 X 15 feet. MENSURATION 189 15^5756067.5 square feet. … Fig. 8 Examples for Exercise Find the area of triangles having the dimensions below. 1. Base 15 feet, height 4.5. Arts. 33.75 square feet. 2. Base 14.75 feet, height 61 feet. Arts. 46.09375square feet. 3. Base 8 inches, height 4 inches. Ans. 16 inches. 4. Base 27.5 feet, height 5 feet. Ans. 68.75…
Mechanics · Arithmetic · Measurement
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