摘　要

In outdoor survey of landscape or indoor measuring of volumes, surface areas and lengths of curves, the tools and their uses, together with the calculations with traditional mathematics are usually tedious and expensive in labor and costs.  The talk shall show that there are ways to transform complicated mathematical problems in doing the survey work to simplified statistical problems regarding Euclidean volumes, areas, and lengths first. Then, by simply applying optical tools including laser distance guns and planary angle measurement devices from just a convenient location, we will be able to obtain the needed data to get solutions for the sizes of the questioned volumes, surface areas and curve lengths in the real world  by related statistical treatments upon the data.  Practical examples shall be illustrated to explain the speaker's primary thoughts on the whole idea.