Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 219
uration of Surfaces. PROBLEM IV. To find the hypothenuse of a right angled triangle whenthe base and perpendicular are known RULE. I. Square each of the sides separately. II. Add the squares together. III. Extract the square root of the sum, which will be ifa Inj-pothenuse of the triangle (Bk. IV.… … 3(T 900 40 =1600 sum=2500 ^4 0=^/2500 = 50 feet. 2. The wall of a building, on the brink of a river, is 120feet high, and the breadth of the river 70 yards: what is thelength of a line which would reach from the top of the wall tothe opposite edge of the river? Arts. 241.86 ft. 3. The side roofs of…
Geometry · Plane trigonometry
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