47th teeb meem ntawm Euclid

Qhov no yog qhov twg cov khoom tau txais me ntsis geometric, yog li dais nrog peb. Euclid's 47th teeb meem - tseem hu ua Pythagorean theorem - cim qhov xav tau "square by square." Hauv kev xyaum ua txhua hnub, qhov no txhais tau tias ua kom koj lub neej nyob hauv kev txiav txim, thiab hauv kev tsim kho vaj tse, qhov no yog txoj hauv kev uas Freemasons ua raws thaum tso lub hauv paus.