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 201
ual is called anIsosceles Triangle. (Triangle 2.) And a triangle all of whose sides are equal is called anEquilateral Triangle.- (Triangle 3.) To Find the Area of a Triangle Rule. Multiply the base by half the perpendicularheight. Example. What is the area of a triangle whose baseis 4 feet and… … Fig. 6 Half height = 4 inches; then 4 X 12 = 48 square inches Example. Find the area of a triangle whose base is12 inches and whose height is 4 inches. (Fig. 7.)
Mechanics · Arithmetic · Measurement
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