Answer:
1. An octagon is a polygon made up of 8 sides. It has eight angles. Octagon = Octa + gon where octa means eight and gon means sides.
2.If a polygon is a quadrilateral, then it has four sides, and if a polygon has four sides, then it is a quadrilateral. This long sentence can be shortened by using the phrase if and only if: A polygon is a quadrilateral if and only if it has four sides.
3.Hepta- is a combining form used like a prefix meaning “seven.” It is used in a number of scientific and other technical terms. In chemistry, hepta- is specifically used to indicate seven atoms or seven groups of atoms in compounds, e.g., heptachlor.
Explanation:
sana po nakatulong / makatulong. God bless po
