Illustration used to show “The two perpendiculars to the sides of an angle from any point in its bisector are equal.”
C.A. Hart, Daniel D. Feldman Plane and Solid Geometry (New York, NY: American Book Company, 1911)
2400×1881, 178.7 KiB
1024×802, 21.5 KiB
640×501, 12.5 KiB
320×250, 5.4 KiB