Triangle with Lighthouse
| View Cart ⇗ | Info
An illustration of a three triangles created with boats and a lighthouse. This is an example illustration used to fine the height of an object situated about the plane of observation, and its height above the plane.
Galleries
Miscellaneous TrianglesSource
Benson John Lossing, ed. The New Popular Educator (London, England: Cassell & Company Limited, 1891)
Downloads
2400×1801, 355.0 KiB
1024×768, 61.7 KiB
640×480, 33.6 KiB
320×240, 13.4 KiB