Do you mean a polygon? A polygon is a two-dimensional figure.
Yes, a scalene triangle can be a triangle.
a triangle in a triangle
A triangle is the same as a equilateral triangle because a equilateral triangle is a triangle but it is congruent on all sides
there is equilateral triangle, right triangle, isosceles triangle, obtuse triangle, acute triangle, scalene triangle and oblique triangle
A pentagon
dodecagon
it is called a nonagon
Do you mean a polygon? A polygon is a two-dimensional figure.
7?
Yes an octagon is an 8 sided polygon
An isosceles trapezoid would fit the given description
A regular n-gon is a polyon that has n sides of equal length, and thus n angles of equal degree (see related link for what this degree would be).
any triangle is a triangle
If a triangle is obtuse, the orthocenter of the triangle actually lies outside of the triangle. If the triangle is acute, the orthocenter of the triangle lies on the inside of the triangle
Yes, a scalene triangle can be a triangle.
A triangle can be constructed into any of the given formats.