The Internet Archive has a preservation copy of this work in our general collections.
If a circle be circumscribed about a triangle, the points in which tangents at the vertices meet the opposite sides lie on the same straight line. 418. Proposed by H. C. McMillin, Washington, Kansas. ABC is a right-angled triangle, B is the right angle, BL is the perpendicular to AC. On the side of BC remote from A, the square BCDE is described, and the line AD cuts BL in M. Prove that -^r == -*? + -or * 419. Proposed by W. A. Tippie, Troy, Ohio. A cylindrical tank is 10 feet in diameter anddoi:10.1111/j.1949-8594.1915.tb16248.x fatcat:m62ljxvxbfezvkp466d5cnatay