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 215
sides are all triangles, meetingat one point (A), called thevertex of the pyramid. (Fig.27.) Polygon means manycurvesor many angles. A polygon, then, is a planefigure bounded by three, four,five, six, or any number ofsides. Accordingly, the base of apyramid may be triangular,square, pentagonal,… … Fig. 27 VOLUME MEASURE AND CONTENTS OF SOLIDS 203 and one having a five-sided or pentagonal base is calleda pentagonal pyramid. To Find the Cubic Contents of a Pyramid Rule. Multiply the area of the base by one third ofits perpendicular height (altitude). Example. How many cubic inches are there in…
Mechanics · Arithmetic · Measurement
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