edistances from the co-ordinate planes are equal to those of P;and, if P be (a, h, c) the other points are (— a, h, c), {a, — h, c),{a, h, — c), (a, — b, — c), (— a, b, — c), (— a, - b, c) and (— a,—b,—c)respectively. CO-ORDINATES. 3 4. To find the co-ordinates of the point which divides… … Draw PL, QM, B^ parallel to OZ meeting XO Y in Z, i/, iV^. Then the points P, Q, R, L, M, N are clearly all in one plane, and a line through P parallel to LM will be in that plane, and will therefore meet QM, RN, in the points K, H suppose. ^, ER PR m, Then -777^ = -jT7\ = — • KQ PQ m^ + ??i2 But…
Geometry, Analytic -- Solid
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