Нова формула за лице на четириъгълник (четиво за VII клас)
A new Formula for the Area of the Quadrilateral (Reading for Grade 7th)
Author(s): Jordan Tabov, Asen Velchev, Stanislav Stefanov, Haim HaimovSubject(s): Social Sciences, Education
Published by: Национално издателство за образование и наука „Аз-буки“
Keywords: formula for the area оf a quadrilateral; pentagon; hexagon
Summary/Abstract: Here we derive formula for the area of a quadrilateral with angle 45º between the diagonals, which is a special case of a more general formula for the area of a quadrilateral (Haimov 2022). Along the way we obtain formulas for the area of triangles with angle of 45º/135º. We also give formulas for the area of specific kinds of pentagons and hexagons, in the form of problems.
Journal: Математика и информатика
- Issue Year: 66/2023
- Issue No: 1
- Page Range: 7-12
- Page Count: 6
- Language: Bulgarian
