Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 229
256. 257. Circle Segment, a = area. * ~ 12a a? = A+2 — r. Parabola.2h For half a Parabola x = rrb. o 208 Centre op Gravity. … 7- » 258. Half Sphere. Convex* surfaceSolid ....
Mechanical engineering · Engineering
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