Schmall, Charles Nelson. [from old catalog] · New York, D. Van Nostrand company · leaf 31
r of gravity of the triangle (Xj, ?/J,(X.. ?/,), (X3, 2/3) are, X = [1 (Xi -f X, + X3)] , y = [\ (2/i + y-2 + yz)\ ■ 5. Eind the lengths of the medians of the A whose vertices are(-1,-1), (2,3), (0;2). 6. Show that the mid-point of the hypothenuse of a right A is equidis-tant from the vertices.… … ^r^s.^s) Fig. 18. CO-ORDIXATES. THE POINT 15 8. Three vertices of a square are (1, 9), (5, 6), (-2, 2), find the fourthvertex. Ans. ( — 2, 5). 9. The mid-point of a line is (6, 4); one end is (5, 7), find the otherend. Ans. (7, 1). 10. Find the point of bisection between (2(X, 26), [h, k). 11. Find…
Geometry, Analytic
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