Виçкĕтеслĕхĕн тулаш кĕтесĕн теореми

Виçкĕтеслĕхĕн тулаш кĕтесĕн теореми — планиметрири чи паллă теоремăсенчен пĕри.

Виçкĕтеслĕхĕн тулаш кĕтесĕ çав кĕлеткен унпа юнашарла мар кĕтесĕсен суммипе тан. Урăхла каласан, (ÿкерчĕке пăхăр): $d=a+c.$

Вуламалли

• Faber, Richard L. (1983), Foundations of Euclidean and Non-Euclidean Geometry, New York: Marcel Dekker, Inc., ISBN 0-8247-1748-1 
• Greenberg, Marvin Jay (1974), Euclidean and Non-Euclidean Geometries/Development and History, San Francisco: W.H. Freeman, ISBN 0-7167-0454-4 

(3 vols.): ISBN 0-486-60088-2 (vol. 1), ISBN 0-486-60089-0 (vol. 2), ISBN 0-486-60090-4 (vol. 3).

• Henderson, David W. & Taimiņa, Daina (2005), Experiencing Geometry/Euclidean and Non-Euclidean with History (3rd ed.), Pearson/Prentice-Hall, ISBN 0-13-143748-8 
• Venema, Gerard A. (2006), Foundations of Geometry, Upper Saddle River, NJ: Pearson Prentice Hall, ISBN 0-13-143700-3 
• Wylie Jr., C.R. (1964), Foundations of Geometry, New York: McGraw-Hill 
• Wheater, Carolyn C. (2007), Homework Helpers: Geometry, Franklin Lakes, NJ: Career Press, pp. 88–90, ISBN 978-1-56414-936-7