Triangle With Altitude and Isosceles Triangles Within Small 320×160 Medium 640×320 Large 1024×512 Download Tiff Original 2400×1201 | (145.8 KB) Description Illustration showing a triangle with an altitude CD passing through the middle of EF. Triangles AEC and BFC are isosceles. Keywords altitude, inside, isosceles, triangle, triangles, within Galleries Miscellaneous Triangles Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 131
