A complete and practical solution book for the common school teacher (1899)
Fairchild, J[ohn] T[heodore] [from old catalog] · Crawfis College, Ohio, The author · leaf 234
8) Then ACD + ACB=5500 sq. ft., area of trapezium. PROBLEM 434. Find the perimeter of a rhombus, area 21(j sq. ft., and one diagonal24 ft. Solution. (1) Let ABCD be the rhombus. (2) AC=24 ft., the given diag- onal, and DB is the otherdiagonal. (3) The triangle DBC=| of 216, or 108 sq. ft. (4) The… … PIG. 108. PROBLEM 435. The area of a rhombus is 96 sq. rd., and the diagonals are to eachother as 3 to 4: find the side. Solution. (1) Assume a similar rhombus whose sides are AB, BC, CD and DA, diagonals AC and DB. (2) FC=2, and DB=3 ft. (3) Then the area of ABCD=DBx FC, or 6 sq. ft. 220…
Arithmetic · Geometry
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