It means 3 angles that can be found in a triangle.
A 3-sided polygon
If you mean a scalene triangle, then no. A regular polygon is defined as having equal angles. A scalene triangle has 3 different angles (and 3 different length sides).
all 3 sides have different lengths
If you mean what shape has 3 sides, it's a triangle.
a triangle has 1 face but if you mean a pyramid (3-D triangle) it has4 but a (a 3-D triangle with a square bottom) it has 5.
It means 3 angles that can be found in a triangle.
If you mean can a triangle have 3 equal sides and the answer is yes it can and it is called an equilateral triangle.
A 3-sided polygon
3 Angles in a Triangle
It means 3 sides of a triangle
It means "my beauty" :) <3
If you mean a scalene triangle, then no. A regular polygon is defined as having equal angles. A scalene triangle has 3 different angles (and 3 different length sides).
all 3 sides have different lengths
3 Points in a Triangle 3 Performers in a Trio 3 People in a Trio
The 3 external angles of a triangle add up to 360 degrees Area of a triangle is 0.5*base*height
It means therefore