Hicks' builders' guide : comprising an easy, practical system of estimating material and labor for carpenters, contractors and builders .. (1910)
Hicks, Isaac Perry, 1856- · New York : David Williams Company · leaf 40
fequal areas and two trapezoids of equal areas. E Gmultiplied by G A will give the area of the two tri-angles. Half the sum of D C and E B multiplied byG F will give he area of the two trapezoids. Thetwo areas added will give the total area. To find the area of an irregular pentagon, we willlet A B… … Fig. 38.—Finding Area ofRegular Pentagon. 39.—Finding Area of anIrregular Pentagon. dicular distance from their vertices to the oppositesides, called the base and shown by the lines E F,A G and B H. This divides the figure into six rightangled triangles of unequal areas. A D multiplied byhalf the…
Carpentry · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
